13032011231 has 4 divisors (see below), whose sum is σ = 13034310072. Its totient is φ = 13029712392.

The previous prime is 13032011219. The next prime is 13032011233. The reversal of 13032011231 is 13211023031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13032011231 is a prime.

It is a super-2 number, since 2×13032011231² (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 (13032011233) 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, 1140896 + ... + 1152261.

It is an arithmetic number, because the mean of its divisors is an integer number (3258577518).

Almost surely, 2^13032011231 is an apocalyptic number.

13032011231 is a deficient number, since it is larger than the sum of its proper divisors (2298841).

13032011231 is an equidigital number, since it uses as much as digits as its factorization.

13032011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298840.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 13032011231 its reverse (13211023031), we get a palindrome (26243034262).

The spelling of 13032011231 in words is "thirteen billion, thirty-two million, eleven thousand, two hundred thirty-one".