31223431013124 has 48 divisors (see below), whose sum is σ = 83821291344000. Its totient is φ = 8861107934976.

The previous prime is 31223431013123. The next prime is 31223431013141. The reversal of 31223431013124 is 42131013432213.

It is a junction number, because it is equal to n+sod(n) for n = 31223431013091 and 31223431013100.

It is not an unprimeable number, because it can be changed into a prime (31223431013123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1247328129 + ... + 1247353160.

It is an arithmetic number, because the mean of its divisors is an integer number (1746276903000).

Almost surely, 2^{31223431013124} is an apocalyptic number.

It is an amenable number.

31223431013124 is an abundant number, since it is smaller than the sum of its proper divisors (52597860330876).

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

31223431013124 is a wasteful number, since it uses less digits than its factorization.

31223431013124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2494681452 (or 2494681450 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 31223431013124 its reverse (42131013432213), we get a palindrome (73354444445337).

The spelling of 31223431013124 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred thirty-one million, thirteen thousand, one hundred twenty-four".