130204431 has 24 divisors (see below), whose sum is σ = 216379904. Its totient is φ = 73904400.

The previous prime is 130204427. The next prime is 130204457. The reversal of 130204431 is 134402031.

130204431 is a `hidden beast` number, since 1 + 30 + 204 + 431 = 666.

It is not a de Polignac number, because 130204431 - 2² = 130204427 is a prime.

It is a super-2 number, since 2×130204431² = 33906387704067522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130204631) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2670 + ... + 16356.

Almost surely, 2^130204431 is an apocalyptic number.

130204431 is a deficient number, since it is larger than the sum of its proper divisors (86175473).

130204431 is a wasteful number, since it uses less digits than its factorization.

130204431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13851 (or 13848 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 130204431 is about 11410.7156217303. The cubic root of 130204431 is about 506.8451028276.

Adding to 130204431 its reverse (134402031), we get a palindrome (264606462).

The spelling of 130204431 in words is "one hundred thirty million, two hundred four thousand, four hundred thirty-one".