131120202112434 has 40 divisors (see below), whose sum is σ = 301747091762028. Its totient is φ = 42525470953440.

The previous prime is 131120202112411. The next prime is 131120202112499. The reversal of 131120202112434 is 434211202021131.

131120202112434 is a `hidden beast` number, since 1 + 3 + 1 + 1 + 20 + 202 + 1 + 1 + 2 + 434 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 129621298968225 + 1498903144209 = 11385135^2 + 1224297^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 131120202112398 and 131120202112407.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10937615137 + ... + 10937627124.

Almost surely, 2^{131120202112434} is an apocalyptic number.

131120202112434 is an abundant number, since it is smaller than the sum of its proper divisors (170626889649594).

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

131120202112434 is a wasteful number, since it uses less digits than its factorization.

131120202112434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21875242312 (or 21875242303 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 131120202112434 its reverse (434211202021131), we get a palindrome (565331404133565).

The spelling of 131120202112434 in words is "one hundred thirty-one trillion, one hundred twenty billion, two hundred two million, one hundred twelve thousand, four hundred thirty-four".