131142131223412 has 48 divisors (see below), whose sum is σ = 234034390195200. Its totient is φ = 64277353886720.

The previous prime is 131142131223379. The next prime is 131142131223421. The reversal of 131142131223412 is 214322131241131.

It is a super-2 number, since 2×131142131223412² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 1793458212 + ... + 1793531332.

It is an arithmetic number, because the mean of its divisors is an integer number (4875716462400).

Almost surely, 2^{131142131223412} is an apocalyptic number.

It is an amenable number.

131142131223412 is a deficient number, since it is larger than the sum of its proper divisors (102892258971788).

131142131223412 is a wasteful number, since it uses less digits than its factorization.

131142131223412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80496 (or 80494 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

Adding to 131142131223412 its reverse (214322131241131), we get a palindrome (345464262464543).

The spelling of 131142131223412 in words is "one hundred thirty-one trillion, one hundred forty-two billion, one hundred thirty-one million, two hundred twenty-three thousand, four hundred twelve".