203130201931 has 2 divisors, whose sum is σ = 203130201932. Its totient is φ = 203130201930.

The previous prime is 203130201899. The next prime is 203130202007. The reversal of 203130201931 is 139102031302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203130201931 - 2⁵ = 203130201899 is a prime.

It is a super-2 number, since 2×203130201931² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203130201896 and 203130201905.

It is not a weakly prime, because it can be changed into another prime (203130202931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101565100965 + 101565100966.

It is an arithmetic number, because the mean of its divisors is an integer number (101565100966).

Almost surely, 2^203130201931 is an apocalyptic number.

203130201931 is a deficient number, since it is larger than the sum of its proper divisors (1).

203130201931 is an equidigital number, since it uses as much as digits as its factorization.

203130201931 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 25.

The spelling of 203130201931 in words is "two hundred three billion, one hundred thirty million, two hundred one thousand, nine hundred thirty-one".