23231131031323 has 4 divisors (see below), whose sum is σ = 23231170330128. Its totient is φ = 23231091732520.

The previous prime is 23231131031267. The next prime is 23231131031351. The reversal of 23231131031323 is 32313013113232.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23231131031323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23231131031291 and 23231131031300.

It is not an unprimeable number, because it can be changed into a prime (23231131031393) 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, 18748936 + ... + 19949557.

It is an arithmetic number, because the mean of its divisors is an integer number (5807792582532).

Almost surely, 2^{23231131031323} is an apocalyptic number.

23231131031323 is a deficient number, since it is larger than the sum of its proper divisors (39298805).

23231131031323 is an equidigital number, since it uses as much as digits as its factorization.

23231131031323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39298804.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 23231131031323 its reverse (32313013113232), we get a palindrome (55544144144555).

The spelling of 23231131031323 in words is "twenty-three trillion, two hundred thirty-one billion, one hundred thirty-one million, thirty-one thousand, three hundred twenty-three".