231133111001311 has 8 divisors (see below), whose sum is σ = 232221905199360. Its totient is φ = 230045331054168.

The previous prime is 231133111001257. The next prime is 231133111001329. The reversal of 231133111001311 is 113100111331132.

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 231133111001311 - 2⁷ = 231133111001183 is a prime.

It is a super-2 number, since 2×231133111001311² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231133111001411) 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, 253105881 + ... + 254017426.

It is an arithmetic number, because the mean of its divisors is an integer number (29027738149920).

Almost surely, 2^{231133111001311} is an apocalyptic number.

231133111001311 is a deficient number, since it is larger than the sum of its proper divisors (1088794198049).

231133111001311 is a wasteful number, since it uses less digits than its factorization.

231133111001311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507125453.

The product of its (nonzero) digits is 162, while the sum is 22.

Adding to 231133111001311 its reverse (113100111331132), we get a palindrome (344233222332443).

The spelling of 231133111001311 in words is "two hundred thirty-one trillion, one hundred thirty-three billion, one hundred eleven million, one thousand, three hundred eleven".