131223114424 has 32 divisors (see below), whose sum is σ = 250624173600. Its totient is φ = 64400765440.

The previous prime is 131223114349. The next prime is 131223114443. The reversal of 131223114424 is 424411322131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 131223114392 and 131223114401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575092 + ... + 770179.

It is an arithmetic number, because the mean of its divisors is an integer number (7832005425).

Almost surely, 2^131223114424 is an apocalyptic number.

It is an amenable number.

131223114424 is a deficient number, since it is larger than the sum of its proper divisors (119401059176).

131223114424 is a wasteful number, since it uses less digits than its factorization.

131223114424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345503 (or 1345499 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

Adding to 131223114424 its reverse (424411322131), we get a palindrome (555634436555).

The spelling of 131223114424 in words is "one hundred thirty-one billion, two hundred twenty-three million, one hundred fourteen thousand, four hundred twenty-four".