20131130132 has 24 divisors (see below), whose sum is σ = 35945654472. Its totient is φ = 9861488000.

The previous prime is 20131130101. The next prime is 20131130137. The reversal of 20131130132 is 23103113102.

It can be written as a sum of positive squares in 4 ways, for example, as 4771493776 + 15359636356 = 69076^2 + 123934^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20131130132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131130137) 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, 80882 + ... + 216342.

It is an arithmetic number, because the mean of its divisors is an integer number (1497735603).

Almost surely, 2^20131130132 is an apocalyptic number.

It is an amenable number.

20131130132 is a deficient number, since it is larger than the sum of its proper divisors (15814524340).

20131130132 is a wasteful number, since it uses less digits than its factorization.

20131130132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136219 (or 136217 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 20131130132 its reverse (23103113102), we get a palindrome (43234243234).

The spelling of 20131130132 in words is "twenty billion, one hundred thirty-one million, one hundred thirty thousand, one hundred thirty-two".