131223403003242 has 64 divisors (see below), whose sum is σ = 291003626325888. Its totient is φ = 39112184928000.

The previous prime is 131223403003223. The next prime is 131223403003243. The reversal of 131223403003242 is 242300304322131.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (131223403003243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 307941148 + ... + 308366984.

It is an arithmetic number, because the mean of its divisors is an integer number (4546931661342).

Almost surely, 2^{131223403003242} is an apocalyptic number.

131223403003242 is an abundant number, since it is smaller than the sum of its proper divisors (159780223322646).

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

131223403003242 is a wasteful number, since it uses less digits than its factorization.

131223403003242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 502455.

The product of its (nonzero) digits is 20736, while the sum is 30.

Adding to 131223403003242 its reverse (242300304322131), we get a palindrome (373523707325373).

The spelling of 131223403003242 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, four hundred three million, three thousand, two hundred forty-two".