130224215531 has 4 divisors (see below), whose sum is σ = 130225421112. Its totient is φ = 130223009952.

The previous prime is 130224215497. The next prime is 130224215549. The reversal of 130224215531 is 135512422031.

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

It is a cyclic number.

It is not a de Polignac number, because 130224215531 - 2²² = 130220021227 is a prime.

It is a super-2 number, since 2×130224215531² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 130224215494 and 130224215503.

It is not an unprimeable number, because it can be changed into a prime (130224215581) 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, 422861 + ... + 662766.

It is an arithmetic number, because the mean of its divisors is an integer number (32556355278).

Almost surely, 2^130224215531 is an apocalyptic number.

130224215531 is a deficient number, since it is larger than the sum of its proper divisors (1205581).

130224215531 is a wasteful number, since it uses less digits than its factorization.

130224215531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1205580.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 130224215531 its reverse (135512422031), we get a palindrome (265736637562).

The spelling of 130224215531 in words is "one hundred thirty billion, two hundred twenty-four million, two hundred fifteen thousand, five hundred thirty-one".