131423133042 has 32 divisors (see below), whose sum is σ = 292081708800. Its totient is φ = 43803165744.

The previous prime is 131423133041. The next prime is 131423133047. The reversal of 131423133042 is 240331324131.

It is a happy number.

131423133042 is a `hidden beast` number, since 1 + 3 + 1 + 42 + 313 + 304 + 2 = 666.

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 = 131423132997 and 131423133015.

It is not an unprimeable number, because it can be changed into a prime (131423133041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420759 + ... + 663237.

It is an arithmetic number, because the mean of its divisors is an integer number (9127553400).

Almost surely, 2^131423133042 is an apocalyptic number.

131423133042 is an abundant number, since it is smaller than the sum of its proper divisors (160658575758).

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

131423133042 is a wasteful number, since it uses less digits than its factorization.

131423133042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252527 (or 252521 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 131423133042 its reverse (240331324131), we get a palindrome (371754457173).

The spelling of 131423133042 in words is "one hundred thirty-one billion, four hundred twenty-three million, one hundred thirty-three thousand, forty-two".