12920130544 has 20 divisors (see below), whose sum is σ = 25505070696. Its totient is φ = 6338176832.

The previous prime is 12920130541. The next prime is 12920130551. The reversal of 12920130544 is 44503102921.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12920130541) 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, 7617154 + ... + 7618849.

Almost surely, 2^12920130544 is an apocalyptic number.

It is an amenable number.

12920130544 is a deficient number, since it is larger than the sum of its proper divisors (12584940152).

12920130544 is a wasteful number, since it uses less digits than its factorization.

12920130544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15236064 (or 15236058 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 12920130544 in words is "twelve billion, nine hundred twenty million, one hundred thirty thousand, five hundred forty-four".