31111103023 has 48 divisors (see below), whose sum is σ = 42418708992. Its totient is φ = 22155120000.

The previous prime is 31111102969. The next prime is 31111103131. The reversal of 31111103023 is 32030111113.

It is not a de Polignac number, because 31111103023 - 2⁹ = 31111102511 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31111102988 and 31111103006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31111103323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1302478 + ... + 1326148.

It is an arithmetic number, because the mean of its divisors is an integer number (883723104).

Almost surely, 2^31111103023 is an apocalyptic number.

31111103023 is a deficient number, since it is larger than the sum of its proper divisors (11307605969).

31111103023 is a wasteful number, since it uses less digits than its factorization.

31111103023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23816 (or 23803 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31111103023 its reverse (32030111113), we get a palindrome (63141214136).

The spelling of 31111103023 in words is "thirty-one billion, one hundred eleven million, one hundred three thousand, twenty-three".