20012313329 has 4 divisors (see below), whose sum is σ = 20024319984. Its totient is φ = 20000306676.

The previous prime is 20012313319. The next prime is 20012313353. The reversal of 20012313329 is 92331321002.

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 20012313329 - 2²⁰ = 20011264753 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20012313298 and 20012313307.

It is not an unprimeable number, because it can be changed into a prime (20012313319) 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, 6000827 + ... + 6004160.

It is an arithmetic number, because the mean of its divisors is an integer number (5006079996).

Almost surely, 2^20012313329 is an apocalyptic number.

It is an amenable number.

20012313329 is a deficient number, since it is larger than the sum of its proper divisors (12006655).

20012313329 is a wasteful number, since it uses less digits than its factorization.

20012313329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12006654.

The product of its (nonzero) digits is 1944, while the sum is 26.

The spelling of 20012313329 in words is "twenty billion, twelve million, three hundred thirteen thousand, three hundred twenty-nine".