31253221430124 has 24 divisors (see below), whose sum is σ = 72924776320368. Its totient is φ = 10417655764800.

The previous prime is 31253221430113. The next prime is 31253221430143. The reversal of 31253221430124 is 42103412235213.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9042727 + ... + 12011550.

It is an arithmetic number, because the mean of its divisors is an integer number (3038532346682).

Almost surely, 2^{31253221430124} is an apocalyptic number.

It is an amenable number.

31253221430124 is an abundant number, since it is smaller than the sum of its proper divisors (41671554890244).

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

31253221430124 is a wasteful number, since it uses less digits than its factorization.

31253221430124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21177985 (or 21177983 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 31253221430124 its reverse (42103412235213), we get a palindrome (73356633665337).

The spelling of 31253221430124 in words is "thirty-one trillion, two hundred fifty-three billion, two hundred twenty-one million, four hundred thirty thousand, one hundred twenty-four".