121020300 has 108 divisors (see below), whose sum is σ = 387537696. Its totient is φ = 31574400.

The previous prime is 121020293. The next prime is 121020301. The reversal of 121020300 is 3020121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (121020301) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40870 + ... + 43730.

It is an arithmetic number, because the mean of its divisors is an integer number (3588312).

Almost surely, 2^121020300 is an apocalyptic number.

121020300 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 121020300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (193768848).

121020300 is an abundant number, since it is smaller than the sum of its proper divisors (266517396).

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

121020300 is a wasteful number, since it uses less digits than its factorization.

121020300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2928 (or 2918 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 121020300 is about 11000.9226885748. The cubic root of 121020300 is about 494.6364027162.

Adding to 121020300 its reverse (3020121), we get a palindrome (124040421).

The spelling of 121020300 in words is "one hundred twenty-one million, twenty thousand, three hundred".