131236042278 has 16 divisors (see below), whose sum is σ = 286333183296. Its totient is φ = 39768497640.

The previous prime is 131236042253. The next prime is 131236042279. The reversal of 131236042278 is 872240632131.

131236042278 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131236042279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994212376 + ... + 994212507.

It is an arithmetic number, because the mean of its divisors is an integer number (17895823956).

Almost surely, 2^131236042278 is an apocalyptic number.

131236042278 is an abundant number, since it is smaller than the sum of its proper divisors (155097141018).

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

131236042278 is a wasteful number, since it uses less digits than its factorization.

131236042278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988424899.

The product of its (nonzero) digits is 96768, while the sum is 39.

The spelling of 131236042278 in words is "one hundred thirty-one billion, two hundred thirty-six million, forty-two thousand, two hundred seventy-eight".