130023630 has 80 divisors (see below), whose sum is σ = 381428784. Its totient is φ = 31518720.

The previous prime is 130023613. The next prime is 130023653. The reversal of 130023630 is 36320031.

It is a happy number.

130023630 is a `hidden beast` number, since 1 + 30 + 0 + 2 + 3 + 630 = 666.

It is a super-2 number, since 2×130023630² = 33812288716753800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1614 + ... + 16206.

Almost surely, 2^130023630 is an apocalyptic number.

130023630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 130023630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (190714392).

130023630 is an abundant number, since it is smaller than the sum of its proper divisors (251405154).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130023630 is a wasteful number, since it uses less digits than its factorization.

130023630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14623 (or 14614 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 130023630 is about 11402.7904479561. The cubic root of 130023630 is about 506.6103935848.

Adding to 130023630 its reverse (36320031), we get a palindrome (166343661).

The spelling of 130023630 in words is "one hundred thirty million, twenty-three thousand, six hundred thirty".