31133112023 has 32 divisors (see below), whose sum is σ = 35589153600. Its totient is φ = 27026850816.

The previous prime is 31133112019. The next prime is 31133112037. The reversal of 31133112023 is 32021133113.

It is a cyclic number.

It is not a de Polignac number, because 31133112023 - 2² = 31133112019 is a prime.

It is a super-3 number, since 3×31133112023³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31133111986 and 31133112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31133117023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6303611 + ... + 6308547.

It is an arithmetic number, because the mean of its divisors is an integer number (1112161050).

Almost surely, 2^31133112023 is an apocalyptic number.

31133112023 is a deficient number, since it is larger than the sum of its proper divisors (4456041577).

31133112023 is a wasteful number, since it uses less digits than its factorization.

31133112023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5411.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31133112023 its reverse (32021133113), we get a palindrome (63154245136).

The spelling of 31133112023 in words is "thirty-one billion, one hundred thirty-three million, one hundred twelve thousand, twenty-three".