121223130320344 has 64 divisors (see below), whose sum is σ = 247151535755040. Its totient is φ = 55406860354560.

The previous prime is 121223130320249. The next prime is 121223130320363. The reversal of 121223130320344 is 443023031322121.

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, 29933412 + ... + 33741004.

Almost surely, 2^{121223130320344} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121223130320344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123575767877520).

121223130320344 is an abundant number, since it is smaller than the sum of its proper divisors (125928405434696).

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

121223130320344 is a wasteful number, since it uses less digits than its factorization.

121223130320344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3810580 (or 3810576 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 121223130320344 its reverse (443023031322121), we get a palindrome (564246161642465).

The spelling of 121223130320344 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, one hundred thirty million, three hundred twenty thousand, three hundred forty-four".