121330000 has 100 divisors (see below), whose sum is σ = 320747328. Its totient is φ = 44080000.

The previous prime is 121329977. The next prime is 121330031. The reversal of 121330000 is 33121.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 109449 + ... + 110551.

Almost surely, 2^121330000 is an apocalyptic number.

121330000 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 121330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160373664).

121330000 is an abundant number, since it is smaller than the sum of its proper divisors (199417328).

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

121330000 is a wasteful number, since it uses less digits than its factorization.

121330000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142 (or 1121 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 121330000 is about 11014.9897866498. The cubic root of 121330000 is about 495.0579804886.

Adding to 121330000 its reverse (33121), we get a palindrome (121363121).

It can be divided in two parts, 1213 and 30000, that added together give a palindrome (31213).

The spelling of 121330000 in words is "one hundred twenty-one million, three hundred thirty thousand".