130031042 has 4 divisors (see below), whose sum is σ = 195046566. Its totient is φ = 65015520.

The previous prime is 130031023. The next prime is 130031051. The reversal of 130031042 is 240130031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240130031 = 14731 ⋅16301.

It can be written as a sum of positive squares in only one way, i.e., 70879561 + 59151481 = 8419^2 + 7691^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32507759 + ... + 32507762.

Almost surely, 2^130031042 is an apocalyptic number.

130031042 is a deficient number, since it is larger than the sum of its proper divisors (65015524).

130031042 is an equidigital number, since it uses as much as digits as its factorization.

130031042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65015523.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 130031042 is about 11403.1154514896. The cubic root of 130031042 is about 506.6200198476.

Adding to 130031042 its reverse (240130031), we get a palindrome (370161073).

The spelling of 130031042 in words is "one hundred thirty million, thirty-one thousand, forty-two".