131223100304412 has 18 divisors (see below), whose sum is σ = 331702836880688. Its totient is φ = 43741033434792.

The previous prime is 131223100304377. The next prime is 131223100304423. The reversal of 131223100304412 is 214403001322131.

131223100304412 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 2 + 310 + 0 + 304 + 41 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1822543059748 + ... + 1822543059819.

Almost surely, 2^{131223100304412} is an apocalyptic number.

131223100304412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

131223100304412 is an abundant number, since it is smaller than the sum of its proper divisors (200479736576276).

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

131223100304412 is a wasteful number, since it uses less digits than its factorization.

131223100304412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3645086119577 (or 3645086119572 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 131223100304412 its reverse (214403001322131), we get a palindrome (345626101626543).

The spelling of 131223100304412 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, one hundred million, three hundred four thousand, four hundred twelve".