121556314304 has 112 divisors (see below), whose sum is σ = 253506768576. Its totient is φ = 57770496000.

The previous prime is 121556314301. The next prime is 121556314339. The reversal of 121556314304 is 403413655121.

It is not an unprimeable number, because it can be changed into a prime (121556314301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21808862 + ... + 21814434.

Almost surely, 2^121556314304 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 121556314304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126753384288).

121556314304 is an abundant number, since it is smaller than the sum of its proper divisors (131950454272).

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

121556314304 is a wasteful number, since it uses less digits than its factorization.

121556314304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5834 (or 5824 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 121556314304 its reverse (403413655121), we get a palindrome (524969969425).

The spelling of 121556314304 in words is "one hundred twenty-one billion, five hundred fifty-six million, three hundred fourteen thousand, three hundred four".