131320323532 has 12 divisors (see below), whose sum is σ = 239802330096. Its totient is φ = 62805372080.

The previous prime is 131320323499. The next prime is 131320323637. The reversal of 131320323532 is 235323023131.

It is a self number, because there is not a number n which added to its sum of digits gives 131320323532.

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, 713697319 + ... + 713697502.

It is an arithmetic number, because the mean of its divisors is an integer number (19983527508).

Almost surely, 2^131320323532 is an apocalyptic number.

It is an amenable number.

131320323532 is a deficient number, since it is larger than the sum of its proper divisors (108482006564).

131320323532 is a wasteful number, since it uses less digits than its factorization.

131320323532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1427394848 (or 1427394846 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 28.

Adding to 131320323532 its reverse (235323023131), we get a palindrome (366643346663).

The spelling of 131320323532 in words is "one hundred thirty-one billion, three hundred twenty million, three hundred twenty-three thousand, five hundred thirty-two".