121233000120 has 64 divisors (see below), whose sum is σ = 376240356000. Its totient is φ = 31214012928.

The previous prime is 121233000103. The next prime is 121233000137. The reversal of 121233000120 is 21000332121.

It is an interprime number because it is at equal distance from previous prime (121233000103) and next prime (121233000137).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 121233000120.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17415055 + ... + 17422014.

Almost surely, 2^121233000120 is an apocalyptic number.

121233000120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121233000120 is an abundant number, since it is smaller than the sum of its proper divisors (255007355880).

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

121233000120 is a wasteful number, since it uses less digits than its factorization.

121233000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34837112 (or 34837108 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121233000120 its reverse (21000332121), we get a palindrome (142233332241).

The spelling of 121233000120 in words is "one hundred twenty-one billion, two hundred thirty-three million, one hundred twenty", and thus it is an aban number.