20023321313 has 8 divisors (see below), whose sum is σ = 20132092416. Its totient is φ = 19914591600.

The previous prime is 20023321291. The next prime is 20023321319. The reversal of 20023321313 is 31312332002.

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

It is a cyclic number.

It is not a de Polignac number, because 20023321313 - 2¹⁴ = 20023304929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20023321319) 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, 1853618 + ... + 1864388.

It is an arithmetic number, because the mean of its divisors is an integer number (2516511552).

Almost surely, 2^20023321313 is an apocalyptic number.

It is an amenable number.

20023321313 is a deficient number, since it is larger than the sum of its proper divisors (108771103).

20023321313 is a wasteful number, since it uses less digits than its factorization.

20023321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20695.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20023321313 its reverse (31312332002), we get a palindrome (51335653315).

The spelling of 20023321313 in words is "twenty billion, twenty-three million, three hundred twenty-one thousand, three hundred thirteen".