131885452442 has 4 divisors (see below), whose sum is σ = 197828178666. Its totient is φ = 65942726220.

The previous prime is 131885452421. The next prime is 131885452483. The reversal of 131885452442 is 244254588131.

131885452442 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 244254588131 = 877 ⋅278511503.

It can be written as a sum of positive squares in only one way, i.e., 122025161041 + 9860291401 = 349321^2 + 99299^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32971363109 + ... + 32971363112.

Almost surely, 2^131885452442 is an apocalyptic number.

131885452442 is a deficient number, since it is larger than the sum of its proper divisors (65942726224).

131885452442 is an equidigital number, since it uses as much as digits as its factorization.

131885452442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65942726223.

The product of its digits is 1228800, while the sum is 47.

The spelling of 131885452442 in words is "one hundred thirty-one billion, eight hundred eighty-five million, four hundred fifty-two thousand, four hundred forty-two".