121003003200 has 168 divisors, whose sum is σ = 399890601792. Its totient is φ = 32031764480.

The previous prime is 121003003171. The next prime is 121003003213. The reversal of 121003003200 is 2300300121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 565597 + ... + 749603.

Almost surely, 2^121003003200 is an apocalyptic number.

121003003200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121003003200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (199945300896).

121003003200 is an abundant number, since it is smaller than the sum of its proper divisors (278887598592).

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

121003003200 is a wasteful number, since it uses less digits than its factorization.

121003003200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184169 (or 184154 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 121003003200 its reverse (2300300121), we get a palindrome (123303303321).

The spelling of 121003003200 in words is "one hundred twenty-one billion, three million, three thousand, two hundred".