231351115101 has 16 divisors (see below), whose sum is σ = 324713587200. Its totient is φ = 146111873328.

The previous prime is 231351115081. The next prime is 231351115103. The reversal of 231351115101 is 101511153132.

It is not a de Polignac number, because 231351115101 - 2⁵ = 231351115069 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231351115103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3182680 + ... + 3254558.

It is an arithmetic number, because the mean of its divisors is an integer number (20294599200).

Almost surely, 2^231351115101 is an apocalyptic number.

It is an amenable number.

231351115101 is a deficient number, since it is larger than the sum of its proper divisors (93362472099).

231351115101 is a wasteful number, since it uses less digits than its factorization.

231351115101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128368.

The product of its (nonzero) digits is 450, while the sum is 24.

Adding to 231351115101 its reverse (101511153132), we get a palindrome (332862268233).

The spelling of 231351115101 in words is "two hundred thirty-one billion, three hundred fifty-one million, one hundred fifteen thousand, one hundred one".