31204542421312 has 84 divisors (see below), whose sum is σ = 68477727139776. Its totient is φ = 14095668687360.

The previous prime is 31204542421253. The next prime is 31204542421337. The reversal of 31204542421312 is 21312424540213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30183514 + ... + 31200217.

Almost surely, 2^{31204542421312} is an apocalyptic number.

31204542421312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31204542421312 is an abundant number, since it is smaller than the sum of its proper divisors (37273184718464).

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

31204542421312 is a wasteful number, since it uses less digits than its factorization.

31204542421312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61383816 (or 61383793 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 34.

Adding to 31204542421312 its reverse (21312424540213), we get a palindrome (52516966961525).

The spelling of 31204542421312 in words is "thirty-one trillion, two hundred four billion, five hundred forty-two million, four hundred twenty-one thousand, three hundred twelve".