32130012 has 24 divisors (see below), whose sum is σ = 77389312. Its totient is φ = 10364400.

The previous prime is 32129959. The next prime is 32130013. The reversal of 32130012 is 21003123.

It is a happy number.

It is a super-2 number, since 2×32130012² = 2064675342240288, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 32130012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32130013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42814 + ... + 43557.

Almost surely, 2^32130012 is an apocalyptic number.

It is an amenable number.

32130012 is an abundant number, since it is smaller than the sum of its proper divisors (45259300).

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

32130012 is a wasteful number, since it uses less digits than its factorization.

32130012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86409 (or 86407 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 32130012 is about 5668.3341468195. The cubic root of 32130012 is about 317.9095902153.

Adding to 32130012 its reverse (21003123), we get a palindrome (53133135).

The spelling of 32130012 in words is "thirty-two million, one hundred thirty thousand, twelve".