122311443320144 has 40 divisors (see below), whose sum is σ = 255221269272480. Its totient is φ = 56448396448128.

The previous prime is 122311443320119. The next prime is 122311443320147. The reversal of 122311443320144 is 441023344113221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122311443320147) 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, 11952374 + ... + 19684565.

It is an arithmetic number, because the mean of its divisors is an integer number (6380531731812).

Almost surely, 2^{122311443320144} is an apocalyptic number.

It is an amenable number.

122311443320144 is an abundant number, since it is smaller than the sum of its proper divisors (132909825952336).

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

122311443320144 is a wasteful number, since it uses less digits than its factorization.

122311443320144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31655547 (or 31655541 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 35.

Adding to 122311443320144 its reverse (441023344113221), we get a palindrome (563334787433365).

The spelling of 122311443320144 in words is "one hundred twenty-two trillion, three hundred eleven billion, four hundred forty-three million, three hundred twenty thousand, one hundred forty-four".