20310002013 has 48 divisors (see below), whose sum is σ = 32626143360. Its totient is φ = 11192227200.

The previous prime is 20310001997. The next prime is 20310002077. The reversal of 20310002013 is 31020001302.

It is a happy number.

It is not a de Polignac number, because 20310002013 - 2⁴ = 20310001997 is a prime.

It is a super-3 number, since 3×20310002013³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20310002013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20310002413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4392843 + ... + 4397463.

It is an arithmetic number, because the mean of its divisors is an integer number (679711320).

Almost surely, 2^20310002013 is an apocalyptic number.

It is an amenable number.

20310002013 is a deficient number, since it is larger than the sum of its proper divisors (12316141347).

20310002013 is a wasteful number, since it uses less digits than its factorization.

20310002013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5698 (or 5691 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20310002013 its reverse (31020001302), we get a palindrome (51330003315).

The spelling of 20310002013 in words is "twenty billion, three hundred ten million, two thousand, thirteen".