20013100002 has 32 divisors (see below), whose sum is σ = 50826921600. Its totient is φ = 5718028464.

The previous prime is 20013099973. The next prime is 20013100039. The reversal of 20013100002 is 20000131002.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26471977 + ... + 26472732.

It is an arithmetic number, because the mean of its divisors is an integer number (1588341300).

Almost surely, 2^20013100002 is an apocalyptic number.

20013100002 is an abundant number, since it is smaller than the sum of its proper divisors (30813821598).

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

20013100002 is a wasteful number, since it uses less digits than its factorization.

20013100002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52944727 (or 52944721 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

Adding to 20013100002 its reverse (20000131002), we get a palindrome (40013231004).

The spelling of 20013100002 in words is "twenty billion, thirteen million, one hundred thousand, two".