130120203231 has 24 divisors (see below), whose sum is σ = 197947825920. Its totient is φ = 82137880656.

The previous prime is 130120203181. The next prime is 130120203233. The reversal of 130120203231 is 132302021031.

130120203231 is a `hidden beast` number, since 1 + 301 + 20 + 20 + 323 + 1 = 666.

It is not a de Polignac number, because 130120203231 - 2¹⁹ = 130119678943 is a prime.

It is a super-2 number, since 2×130120203231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130120203233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 126586 + ... + 525608.

It is an arithmetic number, because the mean of its divisors is an integer number (8247826080).

Almost surely, 2^130120203231 is an apocalyptic number.

130120203231 is a deficient number, since it is larger than the sum of its proper divisors (67827622689).

130120203231 is a wasteful number, since it uses less digits than its factorization.

130120203231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400955 (or 400952 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 130120203231 its reverse (132302021031), we get a palindrome (262422224262).

The spelling of 130120203231 in words is "one hundred thirty billion, one hundred twenty million, two hundred three thousand, two hundred thirty-one".