121333231320 has 128 divisors (see below), whose sum is σ = 418178211840. Its totient is φ = 27588072960.

The previous prime is 121333231301. The next prime is 121333231337. The reversal of 121333231320 is 23132333121.

121333231320 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 217687 + ... + 538566.

It is an arithmetic number, because the mean of its divisors is an integer number (3267017280).

Almost surely, 2^121333231320 is an apocalyptic number.

121333231320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121333231320 is an abundant number, since it is smaller than the sum of its proper divisors (296844980520).

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

121333231320 is a wasteful number, since it uses less digits than its factorization.

121333231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756465 (or 756461 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 121333231320 its reverse (23132333121), we get a palindrome (144465564441).

The spelling of 121333231320 in words is "one hundred twenty-one billion, three hundred thirty-three million, two hundred thirty-one thousand, three hundred twenty".