31223330124 has 48 divisors (see below), whose sum is σ = 86133331200. Its totient is φ = 8613331776.

The previous prime is 31223330101. The next prime is 31223330137. The reversal of 31223330124 is 42103332213.

It is a junction number, because it is equal to n+sod(n) for n = 31223330094 and 31223330103.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6406294 + ... + 6411165.

It is an arithmetic number, because the mean of its divisors is an integer number (1794444400).

Almost surely, 2^31223330124 is an apocalyptic number.

It is an amenable number.

31223330124 is an abundant number, since it is smaller than the sum of its proper divisors (54910001076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31223330124 is a wasteful number, since it uses less digits than its factorization.

31223330124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12817502 (or 12817500 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 31223330124 its reverse (42103332213), we get a palindrome (73326662337).

The spelling of 31223330124 in words is "thirty-one billion, two hundred twenty-three million, three hundred thirty thousand, one hundred twenty-four".