131121225140202 has 144 divisors (see below), whose sum is σ = 319585404378240. Its totient is φ = 38803288930560.

The previous prime is 131121225140111. The next prime is 131121225140221. The reversal of 131121225140202 is 202041522121131.

131121225140202 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 2 + 1 + 2 + 251 + 402 + 0 + 2 = 666.

131121225140202 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 585881199 + ... + 586104957.

It is an arithmetic number, because the mean of its divisors is an integer number (2219343085960).

Almost surely, 2^{131121225140202} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131121225140202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159792702189120).

131121225140202 is an abundant number, since it is smaller than the sum of its proper divisors (188464179238038).

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

131121225140202 is a wasteful number, since it uses less digits than its factorization.

131121225140202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230089 (or 230075 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 131121225140202 its reverse (202041522121131), we get a palindrome (333162747261333).

The spelling of 131121225140202 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, two hundred twenty-five million, one hundred forty thousand, two hundred two".