131121200040002 has 8 divisors (see below), whose sum is σ = 198709447483596. Its totient is φ = 64884717545472.

The previous prime is 131121200039993. The next prime is 131121200040007. The reversal of 131121200040002 is 200040002121131.

It can be written as a sum of positive squares in 2 ways, for example, as 130942271886001 + 178928154001 = 11443001^2 + 422999^2 .

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

It is not an unprimeable number, because it can be changed into a prime (131121200040007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337941237023 + ... + 337941237410.

Almost surely, 2^{131121200040002} is an apocalyptic number.

131121200040002 is a deficient number, since it is larger than the sum of its proper divisors (67588247443594).

131121200040002 is an equidigital number, since it uses as much as digits as its factorization.

131121200040002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675882474532.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 131121200040002 its reverse (200040002121131), we get a palindrome (331161202161133).

The spelling of 131121200040002 in words is "one hundred thirty-one trillion, one hundred twenty-one billion, two hundred million, forty thousand, two".