130031056 has 20 divisors (see below), whose sum is σ = 252804132. Its totient is φ = 64791296.

The previous prime is 130031053. The next prime is 130031059. The reversal of 130031056 is 650130031.

It is an interprime number because it is at equal distance from previous prime (130031053) and next prime (130031059).

It can be written as a sum of positive squares in 2 ways, for example, as 119246400 + 10784656 = 10920^2 + 3284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130031051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9181 + ... + 18556.

Almost surely, 2^130031056 is an apocalyptic number.

130031056 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

130031056 is a deficient number, since it is larger than the sum of its proper divisors (122773076).

130031056 is a wasteful number, since it uses less digits than its factorization.

130031056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28038 (or 28032 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 130031056 is about 11403.1160653569. The cubic root of 130031056 is about 506.6200380296.

Adding to 130031056 its reverse (650130031), we get a palindrome (780161087).

The spelling of 130031056 in words is "one hundred thirty million, thirty-one thousand, fifty-six".