121544364032 has 104 divisors (see below), whose sum is σ = 299150522496. Its totient is φ = 48083337216.

The previous prime is 121544363989. The next prime is 121544364049. The reversal of 121544364032 is 230463445121.

It is a tau number, because it is divible by the number of its divisors (104).

It is a junction number, because it is equal to n+sod(n) for n = 121544363983 and 121544364001.

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, 209693 + ... + 535779.

Almost surely, 2^121544364032 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 121544364032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (149575261248).

121544364032 is an abundant number, since it is smaller than the sum of its proper divisors (177606158464).

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

121544364032 is an equidigital number, since it uses as much as digits as its factorization.

121544364032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326131 (or 326109 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 121544364032 in words is "one hundred twenty-one billion, five hundred forty-four million, three hundred sixty-four thousand, thirty-two".