131322340402 has 32 divisors (see below), whose sum is σ = 224999752320. Its totient is φ = 56901736320.

The previous prime is 131322340393. The next prime is 131322340427. The reversal of 131322340402 is 204043223131.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294627 + ... + 591142.

It is an arithmetic number, because the mean of its divisors is an integer number (7031242260).

Almost surely, 2^131322340402 is an apocalyptic number.

131322340402 is a deficient number, since it is larger than the sum of its proper divisors (93677411918).

131322340402 is a wasteful number, since it uses less digits than its factorization.

131322340402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886098.

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

Adding to 131322340402 its reverse (204043223131), we get a palindrome (335365563533).

The spelling of 131322340402 in words is "one hundred thirty-one billion, three hundred twenty-two million, three hundred forty thousand, four hundred two".