131223023443112 has 32 divisors (see below), whose sum is σ = 246921255199080. Its totient is φ = 65377360097280.

The previous prime is 131223023443111. The next prime is 131223023443139. The reversal of 131223023443112 is 211344320322131.

It can be written as a sum of positive squares in 4 ways, for example, as 126529067208196 + 4693956234916 = 11248514^2 + 2166554^2 .

It is a super-3 number, since 3×131223023443112³ (a number of 43 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (131223023443111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283990538 + ... + 284452230.

Almost surely, 2^{131223023443112} is an apocalyptic number.

It is an amenable number.

131223023443112 is a deficient number, since it is larger than the sum of its proper divisors (115698231755968).

131223023443112 is a wasteful number, since it uses less digits than its factorization.

131223023443112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588413 (or 588409 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 131223023443112 its reverse (211344320322131), we get a palindrome (342567343765243).

The spelling of 131223023443112 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, twenty-three million, four hundred forty-three thousand, one hundred twelve".