130642923 has 4 divisors (see below), whose sum is σ = 174190568. Its totient is φ = 87095280.

The previous prime is 130642891. The next prime is 130642949. The reversal of 130642923 is 329246031.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 130642923 - 2⁵ = 130642891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130642973) 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, 21773818 + ... + 21773823.

It is an arithmetic number, because the mean of its divisors is an integer number (43547642).

Almost surely, 2^130642923 is an apocalyptic number.

130642923 is a deficient number, since it is larger than the sum of its proper divisors (43547645).

130642923 is an equidigital number, since it uses as much as digits as its factorization.

130642923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43547644.

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 130642923 is about 11429.9135167332. The cubic root of 130642923 is about 507.4134360191.

Adding to 130642923 its reverse (329246031), we get a palindrome (459888954).

The spelling of 130642923 in words is "one hundred thirty million, six hundred forty-two thousand, nine hundred twenty-three".