31311012103248 has 40 divisors (see below), whose sum is σ = 81422455333696. Its totient is φ = 10367884800000.

The previous prime is 31311012103201. The next prime is 31311012103249. The reversal of 31311012103248 is 84230121011313.

It is a super-2 number, since 2×31311012103248² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311012103249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2159968753 + ... + 2159983248.

Almost surely, 2^{31311012103248} is an apocalyptic number.

It is an amenable number.

31311012103248 is an abundant number, since it is smaller than the sum of its proper divisors (50111443230448).

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

31311012103248 is a wasteful number, since it uses less digits than its factorization.

31311012103248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4319952163 (or 4319952157 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 31311012103248 in words is "thirty-one trillion, three hundred eleven billion, twelve million, one hundred three thousand, two hundred forty-eight".