131223301032424 has 16 divisors (see below), whose sum is σ = 252044755032420. Its totient is φ = 64011366357120.

The previous prime is 131223301032371. The next prime is 131223301032431. The reversal of 131223301032424 is 424230103322131.

It can be written as a sum of positive squares in 2 ways, for example, as 87381925708900 + 43841375323524 = 9347830^2 + 6621282^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200035519539 + ... + 200035520194.

Almost surely, 2^{131223301032424} is an apocalyptic number.

It is an amenable number.

131223301032424 is a deficient number, since it is larger than the sum of its proper divisors (120821453999996).

131223301032424 is a wasteful number, since it uses less digits than its factorization.

131223301032424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400071039780 (or 400071039776 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 131223301032424 its reverse (424230103322131), we get a palindrome (555453404354555).

The spelling of 131223301032424 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, three hundred one million, thirty-two thousand, four hundred twenty-four".