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20231330331231 = 3261283331393403
BaseRepresentation
bin1001001100110011110010…
…10000011111101001011111
32122122002121012021220220100
410212121321100133221133
510122432231031044411
6111010051141552143
74155444140263305
oct446317120375137
978562535256810
1020231330331231
1164a00715a6868
122328b73715653
13b39a63492936
144dd2b7322275
152513e3b16456
hex12667941fa5f

20231330331231 has 48 divisors (see below), whose sum is σ = 29897180739712. Its totient is φ = 13179596443200.

The previous prime is 20231330331229. The next prime is 20231330331269. The reversal of 20231330331231 is 13213303313202.

20231330331231 is a `hidden beast` number, since 2 + 0 + 2 + 3 + 13 + 303 + 312 + 31 = 666.

It is not a de Polignac number, because 20231330331231 - 21 = 20231330331229 is a prime.

It is a super-2 number, since 2×202313303312312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20231330331195 and 20231330331204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231330331271) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 51229776 + ... + 51623178.

Almost surely, 220231330331231 is an apocalyptic number.

20231330331231 is a deficient number, since it is larger than the sum of its proper divisors (9665850408481).

20231330331231 is a wasteful number, since it uses less digits than its factorization.

20231330331231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394084 (or 394081 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 20231330331231 its reverse (13213303313202), we get a palindrome (33444633644433).

The spelling of 20231330331231 in words is "twenty trillion, two hundred thirty-one billion, three hundred thirty million, three hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 3 9 61 183 283 331 549 849 993 2547 2979 17263 20191 51789 60573 93673 155367 181719 281019 393403 843057 1180209 3540627 5714053 17142159 23997583 51426477 71992749 111333049 130216393 215978247 333999147 390649179 1001997441 1171947537 6791315989 7943199973 20373947967 23829599919 36851239219 61121843901 71488799757 110553717657 331661152971 2247925592359 6743776777077 20231330331231