31120311023 has 8 divisors (see below), whose sum is σ = 32475362400. Its totient is φ = 29765425888.

The previous prime is 31120311011. The next prime is 31120311049. The reversal of 31120311023 is 32011302113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31120311023 - 2¹⁰ = 31120309999 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31120310992 and 31120311010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31120311083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 480833 + ... + 541701.

It is an arithmetic number, because the mean of its divisors is an integer number (4059420300).

Almost surely, 2^31120311023 is an apocalyptic number.

31120311023 is a deficient number, since it is larger than the sum of its proper divisors (1355051377).

31120311023 is a wasteful number, since it uses less digits than its factorization.

31120311023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83121.

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

Adding to 31120311023 its reverse (32011302113), we get a palindrome (63131613136).

The spelling of 31120311023 in words is "thirty-one billion, one hundred twenty million, three hundred eleven thousand, twenty-three".