121323000 has 128 divisors (see below), whose sum is σ = 389113920. Its totient is φ = 31449600.

The previous prime is 121322969. The next prime is 121323017. The reversal of 121323000 is 323121.

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 31 ways as a sum of consecutive naturals, for example, 110454 + ... + 111546.

Almost surely, 2^121323000 is an apocalyptic number.

121323000 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 121323000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (194556960).

121323000 is an abundant number, since it is smaller than the sum of its proper divisors (267790920).

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

121323000 is a wasteful number, since it uses less digits than its factorization.

121323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1154 (or 1140 counting only the distinct ones).

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

The square root of 121323000 is about 11014.6720332473. The cubic root of 121323000 is about 495.0484596981.

Adding to 121323000 its reverse (323121), we get a palindrome (121646121).

The spelling of 121323000 in words is "one hundred twenty-one million, three hundred twenty-three thousand".