31313300124420 has 48 divisors (see below), whose sum is σ = 97419155944320. Its totient is φ = 8350213366368.

The previous prime is 31313300124397. The next prime is 31313300124427. The reversal of 31313300124420 is 2442100331313.

It is a happy number.

31313300124420 is a `hidden beast` number, since 3 + 1 + 313 + 300 + 1 + 2 + 4 + 42 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (31313300124427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28993795872 + ... + 28993796951.

It is an arithmetic number, because the mean of its divisors is an integer number (2029565748840).

Almost surely, 2^{31313300124420} is an apocalyptic number.

31313300124420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31313300124420 is an abundant number, since it is smaller than the sum of its proper divisors (66105855819900).

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

31313300124420 is a wasteful number, since it uses less digits than its factorization.

31313300124420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57987592841 (or 57987592833 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31313300124420 its reverse (2442100331313), we get a palindrome (33755400455733).

The spelling of 31313300124420 in words is "thirty-one trillion, three hundred thirteen billion, three hundred million, one hundred twenty-four thousand, four hundred twenty".