121323023200 has 36 divisors (see below), whose sum is σ = 296179832340. Its totient is φ = 48529208960.

The previous prime is 121323023183. The next prime is 121323023201. The reversal of 121323023200 is 2320323121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121323023201) 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, 75826090 + ... + 75827689.

It is an arithmetic number, because the mean of its divisors is an integer number (8227217565).

Almost surely, 2^121323023200 is an apocalyptic number.

121323023200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121323023200 is an abundant number, since it is smaller than the sum of its proper divisors (174856809140).

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

121323023200 is a wasteful number, since it uses less digits than its factorization.

121323023200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151653799 (or 151653786 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 121323023200 its reverse (2320323121), we get a palindrome (123643346321).

The spelling of 121323023200 in words is "one hundred twenty-one billion, three hundred twenty-three million, twenty-three thousand, two hundred".