121752361444 has 24 divisors (see below), whose sum is σ = 243521505920. Its totient is φ = 52175987136.

The previous prime is 121752361417. The next prime is 121752361469. The reversal of 121752361444 is 444163257121.

It is a junction number, because it is equal to n+sod(n) for n = 121752361397 and 121752361406.

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, 285889 + ... + 570295.

Almost surely, 2^121752361444 is an apocalyptic number.

121752361444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

121752361444 is an abundant number, since it is smaller than the sum of its proper divisors (121769144476).

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

121752361444 is a wasteful number, since it uses less digits than its factorization.

121752361444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299707 (or 299705 counting only the distinct ones).

The product of its digits is 161280, while the sum is 40.

The spelling of 121752361444 in words is "one hundred twenty-one billion, seven hundred fifty-two million, three hundred sixty-one thousand, four hundred forty-four".