50313123531 has 12 divisors (see below), whose sum is σ = 79281285720. Its totient is φ = 30492802080.

The previous prime is 50313123503. The next prime is 50313123541. The reversal of 50313123531 is 13532131305.

50313123531 is a `hidden beast` number, since 5 + 0 + 3 + 1 + 3 + 123 + 531 = 666.

It is not a de Polignac number, because 50313123531 - 2⁶ = 50313123467 is a prime.

It is a super-2 number, since 2×50313123531² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 50313123495 and 50313123504.

It is not an unprimeable number, because it can be changed into a prime (50313123541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254106586 + ... + 254106783.

It is an arithmetic number, because the mean of its divisors is an integer number (6606773810).

Almost surely, 2^50313123531 is an apocalyptic number.

50313123531 is a deficient number, since it is larger than the sum of its proper divisors (28968162189).

50313123531 is a wasteful number, since it uses less digits than its factorization.

50313123531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508213386 (or 508213383 counting only the distinct ones).

The product of its (nonzero) digits is 4050, while the sum is 27.

Adding to 50313123531 its reverse (13532131305), we get a palindrome (63845254836).

The spelling of 50313123531 in words is "fifty billion, three hundred thirteen million, one hundred twenty-three thousand, five hundred thirty-one".