130431042 has 36 divisors (see below), whose sum is σ = 328741686. Its totient is φ = 37265760.

The previous prime is 130431017. The next prime is 130431053. The reversal of 130431042 is 240134031.

130431042 is nontrivially palindromic in base 5.

It can be written as a sum of positive squares in only one way, i.e., 84989961 + 45441081 = 9219^2 + 6741^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 73059 + ... + 74822.

Almost surely, 2^130431042 is an apocalyptic number.

130431042 is an abundant number, since it is smaller than the sum of its proper divisors (198310644).

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

130431042 is a wasteful number, since it uses less digits than its factorization.

130431042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147903 (or 147893 counting only the distinct ones).

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

The square root of 130431042 is about 11420.6410503089. The cubic root of 130431042 is about 507.1389743083.

Adding to 130431042 its reverse (240134031), we get a palindrome (370565073).

The spelling of 130431042 in words is "one hundred thirty million, four hundred thirty-one thousand, forty-two".