43131454100442 has 12 divisors (see below), whose sum is σ = 93451483884330. Its totient is φ = 14377151366808.

The previous prime is 43131454100389. The next prime is 43131454100459. The reversal of 43131454100442 is 24400145413134.

It is a happy number.

43131454100442 is a `hidden beast` number, since 4 + 3 + 131 + 45 + 41 + 0 + 0 + 442 = 666.

It can be written as a sum of positive squares in only one way, i.e., 42695390657241 + 436063443201 = 6534171^2 + 660351^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43131454100397 and 43131454100406.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1198095947217 + ... + 1198095947252.

Almost surely, 2^{43131454100442} is an apocalyptic number.

43131454100442 is an abundant number, since it is smaller than the sum of its proper divisors (50320029783888).

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

43131454100442 is a wasteful number, since it uses less digits than its factorization.

43131454100442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2396191894477 (or 2396191894474 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

Adding to 43131454100442 its reverse (24400145413134), we get a palindrome (67531599513576).

The spelling of 43131454100442 in words is "forty-three trillion, one hundred thirty-one billion, four hundred fifty-four million, one hundred thousand, four hundred forty-two".