131435051436 has 60 divisors (see below), whose sum is σ = 370027751632. Its totient is φ = 40441552992.

The previous prime is 131435051381. The next prime is 131435051441. The reversal of 131435051436 is 634150534131.

131435051436 is a `hidden beast` number, since 1 + 3 + 1 + 4 + 3 + 505 + 143 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 131435051436.

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, 15598240 + ... + 15606663.

Almost surely, 2^131435051436 is an apocalyptic number.

It is an amenable number.

131435051436 is an abundant number, since it is smaller than the sum of its proper divisors (238592700196).

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

131435051436 is a wasteful number, since it uses less digits than its factorization.

131435051436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31204932 (or 31204921 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

Adding to 131435051436 its reverse (634150534131), we get a palindrome (765585585567).

The spelling of 131435051436 in words is "one hundred thirty-one billion, four hundred thirty-five million, fifty-one thousand, four hundred thirty-six".