121333401312 has 48 divisors (see below), whose sum is σ = 319302546192. Its totient is φ = 40342579200.

The previous prime is 121333401257. The next prime is 121333401323. The reversal of 121333401312 is 213104333121.

121333401312 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 1553689 + ... + 1629912.

It is an arithmetic number, because the mean of its divisors is an integer number (6652136379).

Almost surely, 2^121333401312 is an apocalyptic number.

121333401312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

121333401312 is an abundant number, since it is smaller than the sum of its proper divisors (197969144880).

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

121333401312 is a wasteful number, since it uses less digits than its factorization.

121333401312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3184011 (or 3184003 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 121333401312 its reverse (213104333121), we get a palindrome (334437734433).

The spelling of 121333401312 in words is "one hundred twenty-one billion, three hundred thirty-three million, four hundred one thousand, three hundred twelve".