121453332000 has 768 divisors, whose sum is σ = 534270836736. Its totient is φ = 23293440000.

The previous prime is 121453331977. The next prime is 121453332017. The reversal of 121453332000 is 233354121.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 12006945 + ... + 12017055.

It is an arithmetic number, because the mean of its divisors is an integer number (695665152).

Almost surely, 2^121453332000 is an apocalyptic number.

121453332000 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 121453332000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267135418368).

121453332000 is an abundant number, since it is smaller than the sum of its proper divisors (412817504736).

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

121453332000 is a wasteful number, since it uses less digits than its factorization.

121453332000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10170 (or 10152 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

Adding to 121453332000 its reverse (233354121), we get a palindrome (121686686121).

The spelling of 121453332000 in words is "one hundred twenty-one billion, four hundred fifty-three million, three hundred thirty-two thousand".