31242144124 has 6 divisors (see below), whose sum is σ = 54673752224. Its totient is φ = 15621072060.

The previous prime is 31242144053. The next prime is 31242144151. The reversal of 31242144124 is 42144124213.

It is a junction number, because it is equal to n+sod(n) for n = 31242144092 and 31242144101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3905268012 + ... + 3905268019.

Almost surely, 2^31242144124 is an apocalyptic number.

It is an amenable number.

31242144124 is a deficient number, since it is larger than the sum of its proper divisors (23431608100).

31242144124 is a wasteful number, since it uses less digits than its factorization.

31242144124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7810536035 (or 7810536033 counting only the distinct ones).

The product of its digits is 6144, while the sum is 28.

Adding to 31242144124 its reverse (42144124213), we get a palindrome (73386268337).

The spelling of 31242144124 in words is "thirty-one billion, two hundred forty-two million, one hundred forty-four thousand, one hundred twenty-four".