121230210300 has 72 divisors (see below), whose sum is σ = 351238571376. Its totient is φ = 32283893760.

The previous prime is 121230210289. The next prime is 121230210323. The reversal of 121230210300 is 3012032121.

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 121230210300.

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, 55749 + ... + 495548.

Almost surely, 2^121230210300 is an apocalyptic number.

121230210300 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 121230210300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175619285688).

121230210300 is an abundant number, since it is smaller than the sum of its proper divisors (230008361076).

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

121230210300 is a wasteful number, since it uses less digits than its factorization.

121230210300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552047 (or 552040 counting only the distinct ones).

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

Adding to 121230210300 its reverse (3012032121), we get a palindrome (124242242421).

The spelling of 121230210300 in words is "one hundred twenty-one billion, two hundred thirty million, two hundred ten thousand, three hundred".