13231031001 has 4 divisors (see below), whose sum is σ = 17641374672. Its totient is φ = 8820687332.

The previous prime is 13231030999. The next prime is 13231031057. The reversal of 13231031001 is 10013013231.

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 13231031001 - 2¹ = 13231030999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13231031081) 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, 2205171831 + ... + 2205171836.

It is an arithmetic number, because the mean of its divisors is an integer number (4410343668).

Almost surely, 2^13231031001 is an apocalyptic number.

It is an amenable number.

13231031001 is a deficient number, since it is larger than the sum of its proper divisors (4410343671).

13231031001 is an equidigital number, since it uses as much as digits as its factorization.

13231031001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4410343670.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 13231031001 its reverse (10013013231), we get a palindrome (23244044232).

The spelling of 13231031001 in words is "thirteen billion, two hundred thirty-one million, thirty-one thousand, one".