31331223210124 has 48 divisors (see below), whose sum is σ = 56409622371648. Its totient is φ = 15219976681728.

The previous prime is 31331223210121. The next prime is 31331223210127. The reversal of 31331223210124 is 42101232213313.

It is an interprime number because it is at equal distance from previous prime (31331223210121) and next prime (31331223210127).

It is a super-2 number, since 2×31331223210124² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31331223210092 and 31331223210101.

It is not an unprimeable number, because it can be changed into a prime (31331223210121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 629659854 + ... + 629709610.

It is an arithmetic number, because the mean of its divisors is an integer number (1175200466076).

Almost surely, 2^{31331223210124} is an apocalyptic number.

It is an amenable number.

31331223210124 is a deficient number, since it is larger than the sum of its proper divisors (25078399161524).

31331223210124 is a wasteful number, since it uses less digits than its factorization.

31331223210124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78754 (or 78752 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31331223210124 its reverse (42101232213313), we get a palindrome (73432455423437).

The spelling of 31331223210124 in words is "thirty-one trillion, three hundred thirty-one billion, two hundred twenty-three million, two hundred ten thousand, one hundred twenty-four".