121321232300 has 18 divisors (see below), whose sum is σ = 263267074308. Its totient is φ = 48528492880.

The previous prime is 121321232299. The next prime is 121321232303. The reversal of 121321232300 is 3232123121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (121321232303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 606606062 + ... + 606606261.

Almost surely, 2^121321232300 is an apocalyptic number.

121321232300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121321232300 is an abundant number, since it is smaller than the sum of its proper divisors (141945842008).

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

121321232300 is a wasteful number, since it uses less digits than its factorization.

121321232300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213212337 (or 1213212330 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121321232300 its reverse (3232123121), we get a palindrome (124553355421).

The spelling of 121321232300 in words is "one hundred twenty-one billion, three hundred twenty-one million, two hundred thirty-two thousand, three hundred".