131002232231 has 8 divisors (see below), whose sum is σ = 141243575760. Its totient is φ = 120784352832.

The previous prime is 131002232209. The next prime is 131002232281. The reversal of 131002232231 is 132232200131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131002232231 - 2¹⁴ = 131002215847 is a prime.

It is a super-2 number, since 2×131002232231² (a number of 23 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 (131002232281) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5854430 + ... + 5876763.

It is an arithmetic number, because the mean of its divisors is an integer number (17655446970).

Almost surely, 2^131002232231 is an apocalyptic number.

131002232231 is a deficient number, since it is larger than the sum of its proper divisors (10241343529).

131002232231 is a wasteful number, since it uses less digits than its factorization.

131002232231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11732065.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131002232231 its reverse (132232200131), we get a palindrome (263234432362).

The spelling of 131002232231 in words is "one hundred thirty-one billion, two million, two hundred thirty-two thousand, two hundred thirty-one".