20130020010 has 48 divisors (see below), whose sum is σ = 52801247304. Its totient is φ = 5320498176.

The previous prime is 20130019997. The next prime is 20130020021. The reversal of 20130020010 is 1002003102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 4792931361 + 15337088649 = 69231^2 + 123843^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 20130019974 and 20130020001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 979507 + ... + 999846.

Almost surely, 2^20130020010 is an apocalyptic number.

20130020010 is an abundant number, since it is smaller than the sum of its proper divisors (32671227294).

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

20130020010 is a wasteful number, since it uses less digits than its factorization.

20130020010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1979479 (or 1979476 counting only the distinct ones).

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

Adding to 20130020010 its reverse (1002003102), we get a palindrome (21132023112).

The spelling of 20130020010 in words is "twenty billion, one hundred thirty million, twenty thousand, ten".