31112320022023 has 4 divisors (see below), whose sum is σ = 31487167251288. Its totient is φ = 30737472792760.

The previous prime is 31112320021957. The next prime is 31112320022053. The reversal of 31112320022023 is 32022002321113.

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-31112320022023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31112320021985 and 31112320022003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112320022053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187423614508 + ... + 187423614673.

It is an arithmetic number, because the mean of its divisors is an integer number (7871791812822).

Almost surely, 2^{31112320022023} is an apocalyptic number.

31112320022023 is a deficient number, since it is larger than the sum of its proper divisors (374847229265).

31112320022023 is an equidigital number, since it uses as much as digits as its factorization.

31112320022023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374847229264.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31112320022023 its reverse (32022002321113), we get a palindrome (63134322343136).

The spelling of 31112320022023 in words is "thirty-one trillion, one hundred twelve billion, three hundred twenty million, twenty-two thousand, twenty-three".