20013300331 has 4 divisors (see below), whose sum is σ = 20014253064. Its totient is φ = 20012347600.

The previous prime is 20013300319. The next prime is 20013300409. The reversal of 20013300331 is 13300331002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20013300331 - 2¹⁵ = 20013267563 is a prime.

It is a super-2 number, since 2×20013300331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20013300631) 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, 444130 + ... + 487111.

It is an arithmetic number, because the mean of its divisors is an integer number (5003563266).

Almost surely, 2^20013300331 is an apocalyptic number.

20013300331 is a deficient number, since it is larger than the sum of its proper divisors (952733).

20013300331 is an equidigital number, since it uses as much as digits as its factorization.

20013300331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952732.

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 20013300331 its reverse (13300331002), we get a palindrome (33313631333).

The spelling of 20013300331 in words is "twenty billion, thirteen million, three hundred thousand, three hundred thirty-one".