121813350 has 48 divisors (see below), whose sum is σ = 302928528. Its totient is φ = 32394240.

The previous prime is 121813343. The next prime is 121813357. The reversal of 121813350 is 53318121.

It is an interprime number because it is at equal distance from previous prime (121813343) and next prime (121813357).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121813350.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121813357) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67662 + ... + 69438.

It is an arithmetic number, because the mean of its divisors is an integer number (6311011).

Almost surely, 2^121813350 is an apocalyptic number.

121813350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121813350 is an abundant number, since it is smaller than the sum of its proper divisors (181115178).

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

121813350 is a wasteful number, since it uses less digits than its factorization.

121813350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2249 (or 2244 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 121813350 is about 11036.9085345490. The cubic root of 121813350 is about 495.7145073793.

The spelling of 121813350 in words is "one hundred twenty-one million, eight hundred thirteen thousand, three hundred fifty".