131310211540 has 48 divisors (see below), whose sum is σ = 276570967680. Its totient is φ = 52368140160.

The previous prime is 131310211517. The next prime is 131310211553. The reversal of 131310211540 is 45112013131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 18545721 + ... + 18552799.

It is an arithmetic number, because the mean of its divisors is an integer number (5761895160).

Almost surely, 2^131310211540 is an apocalyptic number.

131310211540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131310211540 is an abundant number, since it is smaller than the sum of its proper divisors (145260756140).

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

131310211540 is a wasteful number, since it uses less digits than its factorization.

131310211540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9712 (or 9710 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 131310211540 its reverse (45112013131), we get a palindrome (176422224671).

The spelling of 131310211540 in words is "one hundred thirty-one billion, three hundred ten million, two hundred eleven thousand, five hundred forty".