131316023406 has 16 divisors (see below), whose sum is σ = 274050831744. Its totient is φ = 41868876984.

The previous prime is 131316023341. The next prime is 131316023417. The reversal of 131316023406 is 604320613131.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475782556 + ... + 475782831.

It is an arithmetic number, because the mean of its divisors is an integer number (17128176984).

Almost surely, 2^131316023406 is an apocalyptic number.

131316023406 is an abundant number, since it is smaller than the sum of its proper divisors (142734808338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131316023406 is a wasteful number, since it uses less digits than its factorization.

131316023406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951565415.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 131316023406 its reverse (604320613131), we get a palindrome (735636636537).

The spelling of 131316023406 in words is "one hundred thirty-one billion, three hundred sixteen million, twenty-three thousand, four hundred six".