13203630231 has 48 divisors (see below), whose sum is σ = 19764468192. Its totient is φ = 7832816640.

The previous prime is 13203630221. The next prime is 13203630239.

It is a happy number.

13203630231 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13203630231 - 2⁷ = 13203630103 is a prime.

It is a super-2 number, since 2×13203630231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203630239) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3628545 + ... + 3632181.

It is an arithmetic number, because the mean of its divisors is an integer number (411759754).

Almost surely, 2^13203630231 is an apocalyptic number.

13203630231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13203630231 is a deficient number, since it is larger than the sum of its proper divisors (6560837961).

13203630231 is a wasteful number, since it uses less digits than its factorization.

13203630231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3872 (or 3861 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

The spelling of 13203630231 in words is "thirteen billion, two hundred three million, six hundred thirty thousand, two hundred thirty-one".