131200420242 has 16 divisors (see below), whose sum is σ = 263104332480. Its totient is φ = 43616224752.

The previous prime is 131200420201. The next prime is 131200420261. The reversal of 131200420242 is 242024002131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29309742 + ... + 29314217.

It is an arithmetic number, because the mean of its divisors is an integer number (16444020780).

Almost surely, 2^131200420242 is an apocalyptic number.

131200420242 is an abundant number, since it is smaller than the sum of its proper divisors (131903912238).

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

131200420242 is a wasteful number, since it uses less digits than its factorization.

131200420242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58624337.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 131200420242 its reverse (242024002131), we get a palindrome (373224422373).

The spelling of 131200420242 in words is "one hundred thirty-one billion, two hundred million, four hundred twenty thousand, two hundred forty-two".