130511312 has 20 divisors (see below), whose sum is σ = 267740676. Its totient is φ = 61416960.

The previous prime is 130511309. The next prime is 130511327. The reversal of 130511312 is 213115031.

It can be written as a sum of positive squares in 2 ways, for example, as 116553616 + 13957696 = 10796^2 + 3736^2 .

It is a super-2 number, since 2×130511312² = 34066405119922688, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239639 + ... + 240182.

Almost surely, 2^130511312 is an apocalyptic number.

It is an amenable number.

130511312 is an abundant number, since it is smaller than the sum of its proper divisors (137229364).

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

130511312 is a wasteful number, since it uses less digits than its factorization.

130511312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479846 (or 479840 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 130511312 is about 11424.1547608565. The cubic root of 130511312 is about 507.2429876292.

Adding to 130511312 its reverse (213115031), we get a palindrome (343626343).

The spelling of 130511312 in words is "one hundred thirty million, five hundred eleven thousand, three hundred twelve".