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20301101311231 = 135212997357347
BaseRepresentation
bin1001001110110101101111…
…11011101010010011111111
32122212202200122200221101201
410213122313323222103333
510130103123413424411
6111102110332120331
74163464133651206
oct447326773522377
978782618627351
1020301101311231
116517715494804
12233a5a59060a7
13b435023320a0
1450281576023d
152531290893c1
hex1276b7eea4ff

20301101311231 has 8 divisors (see below), whose sum is σ = 21904687499184. Its totient is φ = 18703509839040.

The previous prime is 20301101311223. The next prime is 20301101311243. The reversal of 20301101311231 is 13211310110302.

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

It is not a de Polignac number, because 20301101311231 - 23 = 20301101311223 is a prime.

It is a super-2 number, since 2×203011013112312 (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 = 20301101311199 and 20301101311208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301101311291) 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, 1498671901 + ... + 1498685446.

It is an arithmetic number, because the mean of its divisors is an integer number (2738085937398).

Almost surely, 220301101311231 is an apocalyptic number.

20301101311231 is a deficient number, since it is larger than the sum of its proper divisors (1603586187953).

20301101311231 is a wasteful number, since it uses less digits than its factorization.

20301101311231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997357881.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 20301101311231 its reverse (13211310110302), we get a palindrome (33512411421533).

The spelling of 20301101311231 in words is "twenty trillion, three hundred one billion, one hundred one million, three hundred eleven thousand, two hundred thirty-one".

Divisors: 1 13 521 6773 2997357347 38965645511 1561623177787 20301101311231