31123022312023 has 4 divisors (see below), whose sum is σ = 31123091329288. Its totient is φ = 31122953294760.

The previous prime is 31123022312003. The next prime is 31123022312051. The reversal of 31123022312023 is 32021322032113.

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-31123022312023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31123022312003) 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, 33827736 + ... + 34735597.

It is an arithmetic number, because the mean of its divisors is an integer number (7780772832322).

Almost surely, 2^{31123022312023} is an apocalyptic number.

31123022312023 is a deficient number, since it is larger than the sum of its proper divisors (69017265).

31123022312023 is an equidigital number, since it uses as much as digits as its factorization.

31123022312023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69017264.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31123022312023 its reverse (32021322032113), we get a palindrome (63144344344136).

The spelling of 31123022312023 in words is "thirty-one trillion, one hundred twenty-three billion, twenty-two million, three hundred twelve thousand, twenty-three".