31112103023 has 4 divisors (see below), whose sum is σ = 31201249800. Its totient is φ = 31022956248.

The previous prime is 31112103017. The next prime is 31112103041. The reversal of 31112103023 is 32030121113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32030121113 = 37 ⋅865678949.

It is a cyclic number.

It is not a de Polignac number, because 31112103023 - 2⁴ = 31112103007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31112102992 and 31112103010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31112103523) 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, 44572865 + ... + 44573562.

It is an arithmetic number, because the mean of its divisors is an integer number (7800312450).

Almost surely, 2^31112103023 is an apocalyptic number.

31112103023 is a deficient number, since it is larger than the sum of its proper divisors (89146777).

31112103023 is an equidigital number, since it uses as much as digits as its factorization.

31112103023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89146776.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31112103023 its reverse (32030121113), we get a palindrome (63142224136).

The spelling of 31112103023 in words is "thirty-one billion, one hundred twelve million, one hundred three thousand, twenty-three".