20013001002 has 24 divisors (see below), whose sum is σ = 43883933184. Its totient is φ = 6590626344.

The previous prime is 20013000991. The next prime is 20013001031. The reversal of 20013001002 is 20010031002.

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 11 ways as a sum of consecutive naturals, for example, 6696298 + ... + 6699285.

It is an arithmetic number, because the mean of its divisors is an integer number (1828497216).

Almost surely, 2^20013001002 is an apocalyptic number.

20013001002 is an abundant number, since it is smaller than the sum of its proper divisors (23870932182).

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

20013001002 is a wasteful number, since it uses less digits than its factorization.

20013001002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13395674 (or 13395671 counting only the distinct ones).

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

Adding to 20013001002 its reverse (20010031002), we get a palindrome (40023032004).

It can be divided in two parts, 2001 and 3001002, that added together give a palindrome (3003003).

The spelling of 20013001002 in words is "twenty billion, thirteen million, one thousand, two".