203113020251 has 2 divisors, whose sum is σ = 203113020252. Its totient is φ = 203113020250.

The previous prime is 203113020211. The next prime is 203113020343. The reversal of 203113020251 is 152020311302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 203113020251 - 2¹⁴ = 203113003867 is a prime.

It is a super-2 number, since 2×203113020251² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (203113020211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101556510125 + 101556510126.

It is an arithmetic number, because the mean of its divisors is an integer number (101556510126).

Almost surely, 2^203113020251 is an apocalyptic number.

203113020251 is the 201551-st centered decagonal number.

203113020251 is a deficient number, since it is larger than the sum of its proper divisors (1).

203113020251 is an equidigital number, since it uses as much as digits as its factorization.

203113020251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 203113020251 its reverse (152020311302), we get a palindrome (355133331553).

The spelling of 203113020251 in words is "two hundred three billion, one hundred thirteen million, twenty thousand, two hundred fifty-one".