31113433023 has 8 divisors (see below), whose sum is σ = 41617969536. Its totient is φ = 20675592600.

The previous prime is 31113433009. The next prime is 31113433067. The reversal of 31113433023 is 32033431113.

It is a happy number.

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

It is not a de Polignac number, because 31113433023 - 2⁴ = 31113433007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31113432984 and 31113433002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113433423) 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, 16672933 + ... + 16674798.

It is an arithmetic number, because the mean of its divisors is an integer number (5202246192).

Almost surely, 2^31113433023 is an apocalyptic number.

31113433023 is a deficient number, since it is larger than the sum of its proper divisors (10504536513).

31113433023 is a wasteful number, since it uses less digits than its factorization.

31113433023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33348045.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31113433023 its reverse (32033431113), we get a palindrome (63146864136).

The spelling of 31113433023 in words is "thirty-one billion, one hundred thirteen million, four hundred thirty-three thousand, twenty-three".