131213021120340 has 24 divisors (see below), whose sum is σ = 367396459137120. Its totient is φ = 34990138965408.

The previous prime is 131213021120147. The next prime is 131213021120369. The reversal of 131213021120340 is 43021120312131.

It is a self number, because there is not a number n which added to its sum of digits gives 131213021120340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1093441842610 + ... + 1093441842729.

It is an arithmetic number, because the mean of its divisors is an integer number (15308185797380).

Almost surely, 2^{131213021120340} is an apocalyptic number.

131213021120340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131213021120340 is an abundant number, since it is smaller than the sum of its proper divisors (236183438016780).

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

131213021120340 is a wasteful number, since it uses less digits than its factorization.

131213021120340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2186883685351 (or 2186883685349 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 131213021120340 its reverse (43021120312131), we get a palindrome (174234141432471).

The spelling of 131213021120340 in words is "one hundred thirty-one trillion, two hundred thirteen billion, twenty-one million, one hundred twenty thousand, three hundred forty".