131221342033324 has 48 divisors (see below), whose sum is σ = 237891103206400. Its totient is φ = 63267580336320.

The previous prime is 131221342033321. The next prime is 131221342033343. The reversal of 131221342033324 is 423330243122131.

It is a self number, because there is not a number n which added to its sum of digits gives 131221342033324.

It is not an unprimeable number, because it can be changed into a prime (131221342033321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1407107482 + ... + 1407200734.

Almost surely, 2^{131221342033324} is an apocalyptic number.

It is an amenable number.

131221342033324 is a deficient number, since it is larger than the sum of its proper divisors (106669761173076).

131221342033324 is a wasteful number, since it uses less digits than its factorization.

131221342033324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133670 (or 133668 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 34.

Adding to 131221342033324 its reverse (423330243122131), we get a palindrome (554551585155455).

The spelling of 131221342033324 in words is "one hundred thirty-one trillion, two hundred twenty-one billion, three hundred forty-two million, thirty-three thousand, three hundred twenty-four".