131220403324 has 12 divisors (see below), whose sum is σ = 230904412648. Its totient is φ = 65247714000.

The previous prime is 131220403313. The next prime is 131220403337. The reversal of 131220403324 is 423304022131.

131220403324 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 90621102 + ... + 90622549.

Almost surely, 2^131220403324 is an apocalyptic number.

It is an amenable number.

131220403324 is a deficient number, since it is larger than the sum of its proper divisors (99684009324).

131220403324 is a wasteful number, since it uses less digits than its factorization.

131220403324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181243836 (or 181243834 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 131220403324 its reverse (423304022131), we get a palindrome (554524425455).

The spelling of 131220403324 in words is "one hundred thirty-one billion, two hundred twenty million, four hundred three thousand, three hundred twenty-four".