20203351870013 has 16 divisors (see below), whose sum is σ = 21808281680640. Its totient is φ = 18605698418496.

The previous prime is 20203351870003. The next prime is 20203351870033. The reversal of 20203351870013 is 31007815330202.

It is a cyclic number.

It is not a de Polignac number, because 20203351870013 - 2²⁴ = 20203335092797 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203351870003) 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, 31181756 + ... + 31823082.

It is an arithmetic number, because the mean of its divisors is an integer number (1363017605040).

Almost surely, 2^{20203351870013} is an apocalyptic number.

It is an amenable number.

20203351870013 is a deficient number, since it is larger than the sum of its proper divisors (1604929810627).

20203351870013 is a wasteful number, since it uses less digits than its factorization.

20203351870013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646996.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 20203351870013 in words is "twenty trillion, two hundred three billion, three hundred fifty-one million, eight hundred seventy thousand, thirteen".