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20233201331 = 714811951693
BaseRepresentation
bin10010110101111111…
…100010011010110011
31221020002100010100002
4102311333202122303
5312414144420311
613143415420215
71314253242110
oct226577423263
957202303302
1020233201331
1186431296a2
123b0808466b
131ba5ab80a5
14d9d26b907
157d648293b
hex4b5fe26b3

20233201331 has 8 divisors (see below), whose sum is σ = 23139284064. Its totient is φ = 17331024960.

The previous prime is 20233201291. The next prime is 20233201343. The reversal of 20233201331 is 13310233202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20233201331 - 222 = 20229007027 is a prime.

It is a super-2 number, since 2×202332013312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20233201231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 965480 + ... + 986213.

It is an arithmetic number, because the mean of its divisors is an integer number (2892410508).

Almost surely, 220233201331 is an apocalyptic number.

20233201331 is a deficient number, since it is larger than the sum of its proper divisors (2906082733).

20233201331 is a wasteful number, since it uses less digits than its factorization.

20233201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953181.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20233201331 its reverse (13310233202), we get a palindrome (33543434533).

The spelling of 20233201331 in words is "twenty billion, two hundred thirty-three million, two hundred one thousand, three hundred thirty-one".

Divisors: 1 7 1481 10367 1951693 13661851 2890457333 20233201331