130342631 has 4 divisors (see below), whose sum is σ = 134547264. Its totient is φ = 126138000.

The previous prime is 130342607. The next prime is 130342651. The reversal of 130342631 is 136243031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136243031 = 1039 ⋅131129.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130342631 is a prime.

It is a super-2 number, since 2×130342631² = 33978402912004322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130342597 and 130342606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130342651) 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, 2102270 + ... + 2102331.

It is an arithmetic number, because the mean of its divisors is an integer number (33636816).

Almost surely, 2^130342631 is an apocalyptic number.

130342631 is a deficient number, since it is larger than the sum of its proper divisors (4204633).

130342631 is an equidigital number, since it uses as much as digits as its factorization.

130342631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4204632.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 130342631 is about 11416.7697270287. The cubic root of 130342631 is about 507.0243625369.

Adding to 130342631 its reverse (136243031), we get a palindrome (266585662).

It can be divided in two parts, 1303 and 42631, that added together give a palindrome (43934).

The spelling of 130342631 in words is "one hundred thirty million, three hundred forty-two thousand, six hundred thirty-one".