50313131420 has 24 divisors (see below), whose sum is σ = 107234557584. Its totient is φ = 19824875136.

The previous prime is 50313131411. The next prime is 50313131423. The reversal of 50313131420 is 2413131305.

It is a super-2 number, since 2×50313131420² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50313131423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18772217 + ... + 18774896.

It is an arithmetic number, because the mean of its divisors is an integer number (4468106566).

Almost surely, 2^50313131420 is an apocalyptic number.

It is an amenable number.

50313131420 is an abundant number, since it is smaller than the sum of its proper divisors (56921426164).

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

50313131420 is a wasteful number, since it uses less digits than its factorization.

50313131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37547189 (or 37547187 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 50313131420 its reverse (2413131305), we get a palindrome (52726262725).

The spelling of 50313131420 in words is "fifty billion, three hundred thirteen million, one hundred thirty-one thousand, four hundred twenty".