20013083121 has 8 divisors (see below), whose sum is σ = 26737588000. Its totient is φ = 13315316832.

The previous prime is 20013083117. The next prime is 20013083147. The reversal of 20013083121 is 12138031002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20013083121 - 2² = 20013083117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013083821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6682900 + ... + 6685893.

It is an arithmetic number, because the mean of its divisors is an integer number (3342198500).

Almost surely, 2^20013083121 is an apocalyptic number.

It is an amenable number.

20013083121 is a deficient number, since it is larger than the sum of its proper divisors (6724504879).

20013083121 is a wasteful number, since it uses less digits than its factorization.

20013083121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13369295.

The product of its (nonzero) digits is 288, while the sum is 21.

The spelling of 20013083121 in words is "twenty billion, thirteen million, eighty-three thousand, one hundred twenty-one".