131232013 has 8 divisors (see below), whose sum is σ = 144771840. Its totient is φ = 117960480.

The previous prime is 131232011. The next prime is 131232019. The reversal of 131232013 is 310232131.

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

It is not a de Polignac number, because 131232013 - 2¹ = 131232011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131232011) 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, 66045 + ... + 68002.

It is an arithmetic number, because the mean of its divisors is an integer number (18096480).

Almost surely, 2^131232013 is an apocalyptic number.

It is an amenable number.

131232013 is a deficient number, since it is larger than the sum of its proper divisors (13539827).

131232013 is a wasteful number, since it uses less digits than its factorization.

131232013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134147.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131232013 is about 11455.6541934540. The cubic root of 131232013 is about 508.1749622087.

Adding to 131232013 its reverse (310232131), we get a palindrome (441464144).

The spelling of 131232013 in words is "one hundred thirty-one million, two hundred thirty-two thousand, thirteen".