131403220242 has 16 divisors (see below), whose sum is σ = 300350217792. Its totient is φ = 37543777200.

The previous prime is 131403220219. The next prime is 131403220261. The reversal of 131403220242 is 242022304131.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1564324009 + ... + 1564324092.

It is an arithmetic number, because the mean of its divisors is an integer number (18771888612).

Almost surely, 2^131403220242 is an apocalyptic number.

131403220242 is an abundant number, since it is smaller than the sum of its proper divisors (168946997550).

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

131403220242 is a wasteful number, since it uses less digits than its factorization.

131403220242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3128648113.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 131403220242 its reverse (242022304131), we get a palindrome (373425524373).

The spelling of 131403220242 in words is "one hundred thirty-one billion, four hundred three million, two hundred twenty thousand, two hundred forty-two".