20314725121 has 4 divisors (see below), whose sum is σ = 21383921200. Its totient is φ = 19245529044.

The previous prime is 20314725073. The next prime is 20314725133. The reversal of 20314725121 is 12152741302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20314725121 - 2⁹ = 20314724609 is a prime.

It is a super-3 number, since 3×20314725121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20314725121.

It is not an unprimeable number, because it can be changed into a prime (20314725191) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 534598011 + ... + 534598048.

It is an arithmetic number, because the mean of its divisors is an integer number (5345980300).

Almost surely, 2^20314725121 is an apocalyptic number.

It is an amenable number.

20314725121 is a deficient number, since it is larger than the sum of its proper divisors (1069196079).

20314725121 is a wasteful number, since it uses less digits than its factorization.

20314725121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069196078.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 20314725121 in words is "twenty billion, three hundred fourteen million, seven hundred twenty-five thousand, one hundred twenty-one".