131243522444 has 12 divisors (see below), whose sum is σ = 230959272600. Its totient is φ = 65255158848.

The previous prime is 131243522411. The next prime is 131243522467. The reversal of 131243522444 is 444225342131.

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, 91649789 + ... + 91651220.

It is an arithmetic number, because the mean of its divisors is an integer number (19246606050).

Almost surely, 2^131243522444 is an apocalyptic number.

It is an amenable number.

131243522444 is a deficient number, since it is larger than the sum of its proper divisors (99715750156).

131243522444 is a wasteful number, since it uses less digits than its factorization.

131243522444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183301192 (or 183301190 counting only the distinct ones).

The product of its digits is 92160, while the sum is 35.

Adding to 131243522444 its reverse (444225342131), we get a palindrome (575468864575).

The spelling of 131243522444 in words is "one hundred thirty-one billion, two hundred forty-three million, five hundred twenty-two thousand, four hundred forty-four".