130242631 has 4 divisors (see below), whose sum is σ = 131532264. Its totient is φ = 128953000.

The previous prime is 130242611. The next prime is 130242643. The reversal of 130242631 is 136242031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136242031 = 101 ⋅1348931.

It is a cyclic number.

It is not a de Polignac number, because 130242631 - 2¹⁹ = 129718343 is a prime.

It is a super-2 number, since 2×130242631² = 33926285859604322, 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 (130242611) 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, 644665 + ... + 644866.

It is an arithmetic number, because the mean of its divisors is an integer number (32883066).

Almost surely, 2^130242631 is an apocalyptic number.

130242631 is a deficient number, since it is larger than the sum of its proper divisors (1289633).

130242631 is a wasteful number, since it uses less digits than its factorization.

130242631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289632.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 130242631 is about 11412.3893641954. The cubic root of 130242631 is about 506.8946648628.

Adding to 130242631 its reverse (136242031), we get a palindrome (266484662).

The spelling of 130242631 in words is "one hundred thirty million, two hundred forty-two thousand, six hundred thirty-one".