121175340 has 192 divisors, whose sum is σ = 413199360. Its totient is φ = 26127360.

The previous prime is 121175323. The next prime is 121175357. The reversal of 121175340 is 43571121.

It is an interprime number because it is at equal distance from previous prime (121175323) and next prime (121175357).

It is a self number, because there is not a number n which added to its sum of digits gives 121175340.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 248577 + ... + 249063.

It is an arithmetic number, because the mean of its divisors is an integer number (2152080).

Almost surely, 2^121175340 is an apocalyptic number.

121175340 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 121175340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206599680).

121175340 is an abundant number, since it is smaller than the sum of its proper divisors (292024020).

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

121175340 is a wasteful number, since it uses less digits than its factorization.

121175340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552 (or 550 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 121175340 is about 11007.9671147765. The cubic root of 121175340 is about 494.8475400281.

The spelling of 121175340 in words is "one hundred twenty-one million, one hundred seventy-five thousand, three hundred forty".