130623031 has 16 divisors (see below), whose sum is σ = 165155328. Its totient is φ = 100346400.

The previous prime is 130623023. The next prime is 130623037. The reversal of 130623031 is 130326031.

It is not a de Polignac number, because 130623031 - 2³ = 130623023 is a prime.

It is a super-2 number, since 2×130623031² = 34124752455253922, 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 (130623037) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6480 + ... + 17413.

It is an arithmetic number, because the mean of its divisors is an integer number (10322208).

Almost surely, 2^130623031 is an apocalyptic number.

130623031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130623031 is a deficient number, since it is larger than the sum of its proper divisors (34532297).

130623031 is a wasteful number, since it uses less digits than its factorization.

130623031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23982.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 130623031 is about 11429.0433107938. The cubic root of 130623031 is about 507.3876813892.

Adding to 130623031 its reverse (130326031), we get a palindrome (260949062).

The spelling of 130623031 in words is "one hundred thirty million, six hundred twenty-three thousand, thirty-one".