122431352144 has 40 divisors (see below), whose sum is σ = 249782643840. Its totient is φ = 57973563648.

The previous prime is 122431352107. The next prime is 122431352161. The reversal of 122431352144 is 441253134221.

It is a self number, because there is not a number n which added to its sum of digits gives 122431352144.

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, 821012 + ... + 958604.

It is an arithmetic number, because the mean of its divisors is an integer number (6244566096).

Almost surely, 2^122431352144 is an apocalyptic number.

It is an amenable number.

122431352144 is an abundant number, since it is smaller than the sum of its proper divisors (127351291696).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122431352144 is a wasteful number, since it uses less digits than its factorization.

122431352144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140547 (or 140541 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

Adding to 122431352144 its reverse (441253134221), we get a palindrome (563684486365).

The spelling of 122431352144 in words is "one hundred twenty-two billion, four hundred thirty-one million, three hundred fifty-two thousand, one hundred forty-four".