20312202013 has 16 divisors (see below), whose sum is σ = 21491712000. Its totient is φ = 19167024240.

The previous prime is 20312201963. The next prime is 20312202041. The reversal of 20312202013 is 31020221302.

It is a cyclic number.

It is not a de Polignac number, because 20312202013 - 2²⁵ = 20278647581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312203013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 785748 + ... + 811186.

It is an arithmetic number, because the mean of its divisors is an integer number (1343232000).

Almost surely, 2^20312202013 is an apocalyptic number.

It is an amenable number.

20312202013 is a deficient number, since it is larger than the sum of its proper divisors (1179509987).

20312202013 is a wasteful number, since it uses less digits than its factorization.

20312202013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26112.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20312202013 its reverse (31020221302), we get a palindrome (51332423315).

The spelling of 20312202013 in words is "twenty billion, three hundred twelve million, two hundred two thousand, thirteen".