130011531 has 24 divisors (see below), whose sum is σ = 188504640. Its totient is φ = 79668576.

The previous prime is 130011521. The next prime is 130011559. The reversal of 130011531 is 135110031.

It is not a de Polignac number, because 130011531 - 2¹⁴ = 129995147 is a prime.

It is a super-2 number, since 2×130011531² = 33805996385927922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 130011531.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130011521) 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, 175560 + ... + 176298.

It is an arithmetic number, because the mean of its divisors is an integer number (7854360).

Almost surely, 2^130011531 is an apocalyptic number.

130011531 is a deficient number, since it is larger than the sum of its proper divisors (58493109).

130011531 is a wasteful number, since it uses less digits than its factorization.

130011531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115 (or 1102 counting only the distinct ones).

The product of its (nonzero) digits is 45, while the sum is 15.

The square root of 130011531 is about 11402.2599075797. The cubic root of 130011531 is about 506.5946793405.

Adding to 130011531 its reverse (135110031), we get a palindrome (265121562).

The spelling of 130011531 in words is "one hundred thirty million, eleven thousand, five hundred thirty-one".