20001312132 has 24 divisors (see below), whose sum is σ = 47025989472. Its totient is φ = 6616209600.

The previous prime is 20001312119. The next prime is 20001312137. The reversal of 20001312132 is 23121310002.

It is not an unprimeable number, because it can be changed into a prime (20001312137) 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, 6360169 + ... + 6363312.

It is an arithmetic number, because the mean of its divisors is an integer number (1959416228).

Almost surely, 2^20001312132 is an apocalyptic number.

It is an amenable number.

20001312132 is an abundant number, since it is smaller than the sum of its proper divisors (27024677340).

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

20001312132 is a wasteful number, since it uses less digits than its factorization.

20001312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12723619 (or 12723617 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20001312132 its reverse (23121310002), we get a palindrome (43122622134).

The spelling of 20001312132 in words is "twenty billion, one million, three hundred twelve thousand, one hundred thirty-two".