231000013121323 has 4 divisors (see below), whose sum is σ = 231000220398520. Its totient is φ = 230999805844128.

The previous prime is 231000013121239. The next prime is 231000013121327. The reversal of 231000013121323 is 323121310000132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 231000013121323 - 2³⁷ = 230862574167851 is a prime.

It is a super-2 number, since 2×231000013121323² (a number of 30 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 = 231000013121294 and 231000013121303.

It is not an unprimeable number, because it can be changed into a prime (231000013121327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101957838 + ... + 104198851.

It is an arithmetic number, because the mean of its divisors is an integer number (57750055099630).

Almost surely, 2^{231000013121323} is an apocalyptic number.

231000013121323 is a deficient number, since it is larger than the sum of its proper divisors (207277197).

231000013121323 is a wasteful number, since it uses less digits than its factorization.

231000013121323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207277196.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 231000013121323 its reverse (323121310000132), we get a palindrome (554121323121455).

The spelling of 231000013121323 in words is "two hundred thirty-one trillion, thirteen million, one hundred twenty-one thousand, three hundred twenty-three".