13131231001 has 32 divisors (see below), whose sum is σ = 17152611840. Its totient is φ = 9783223296.

The previous prime is 13131230989. The next prime is 13131231031. The reversal of 13131231001 is 10013213131.

It is not a de Polignac number, because 13131231001 - 2¹³ = 13131222809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13131231031) 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 31 ways as a sum of consecutive naturals, for example, 3346 + ... + 162091.

It is an arithmetic number, because the mean of its divisors is an integer number (536019120).

Almost surely, 2^13131231001 is an apocalyptic number.

It is an amenable number.

13131231001 is a deficient number, since it is larger than the sum of its proper divisors (4021380839).

13131231001 is a wasteful number, since it uses less digits than its factorization.

13131231001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165513.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 13131231001 its reverse (10013213131), we get a palindrome (23144444132).

The spelling of 13131231001 in words is "thirteen billion, one hundred thirty-one million, two hundred thirty-one thousand, one".