13202020231 has 4 divisors (see below), whose sum is σ = 13209801552. Its totient is φ = 13194238912.

The previous prime is 13202020229. The next prime is 13202020241.

13202020231 is nontrivially palindromic in base 10.

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 13202020231 - 2¹ = 13202020229 is a prime.

It is a super-2 number, since 2×13202020231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13202020241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3888115 + ... + 3891508.

It is an arithmetic number, because the mean of its divisors is an integer number (3302450388).

Almost surely, 2^13202020231 is an apocalyptic number.

13202020231 is a deficient number, since it is larger than the sum of its proper divisors (7781321).

13202020231 is an equidigital number, since it uses as much as digits as its factorization.

13202020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7781320.

The product of its (nonzero) digits is 144, while the sum is 16.

It can be divided in two parts, 132020 and 20231, that added together give a palindrome (152251).

The spelling of 13202020231 in words is "thirteen billion, two hundred two million, twenty thousand, two hundred thirty-one".