131113240 has 32 divisors (see below), whose sum is σ = 296725680. Its totient is φ = 52139392.

The previous prime is 131113223. The next prime is 131113259. The reversal of 131113240 is 42311131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2554 + ... + 16393.

Almost surely, 2^131113240 is an apocalyptic number.

131113240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131113240 is an abundant number, since it is smaller than the sum of its proper divisors (165612440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131113240 is a wasteful number, since it uses less digits than its factorization.

131113240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19131 (or 19127 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 131113240 is about 11450.4689860285. The cubic root of 131113240 is about 508.0216061243.

Adding to 131113240 its reverse (42311131), we get a palindrome (173424371).

The spelling of 131113240 in words is "one hundred thirty-one million, one hundred thirteen thousand, two hundred forty".