131203243311424 has 56 divisors (see below), whose sum is σ = 274072021120800. Its totient is φ = 62146044034560.

The previous prime is 131203243311397. The next prime is 131203243311571. The reversal of 131203243311424 is 424113342302131.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 131203243311424.

It is a congruent 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, 24062007 + ... + 29006665.

It is an arithmetic number, because the mean of its divisors is an integer number (4894143234300).

Almost surely, 2^{131203243311424} is an apocalyptic number.

It is an amenable number.

131203243311424 is an abundant number, since it is smaller than the sum of its proper divisors (142868777809376).

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

131203243311424 is a wasteful number, since it uses less digits than its factorization.

131203243311424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4966511 (or 4966501 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 131203243311424 its reverse (424113342302131), we get a palindrome (555316585613555).

The spelling of 131203243311424 in words is "one hundred thirty-one trillion, two hundred three billion, two hundred forty-three million, three hundred eleven thousand, four hundred twenty-four".