13031231232001 has 4 divisors (see below), whose sum is σ = 13039484071600. Its totient is φ = 13022978392404.

The previous prime is 13031231231989. The next prime is 13031231232043. The reversal of 13031231232001 is 10023213213031.

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 13031231232001 - 2¹¹ = 13031231229953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13031231262001) 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, 4126417431 + ... + 4126420588.

It is an arithmetic number, because the mean of its divisors is an integer number (3259871017900).

Almost surely, 2^{13031231232001} is an apocalyptic number.

It is an amenable number.

13031231232001 is a deficient number, since it is larger than the sum of its proper divisors (8252839599).

13031231232001 is an equidigital number, since it uses as much as digits as its factorization.

13031231232001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8252839598.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13031231232001 its reverse (10023213213031), we get a palindrome (23054444445032).

The spelling of 13031231232001 in words is "thirteen trillion, thirty-one billion, two hundred thirty-one million, two hundred thirty-two thousand, one".