121308996 has 72 divisors (see below), whose sum is σ = 306470304. Its totient is φ = 37319040.

The previous prime is 121308989. The next prime is 121309009. The reversal of 121308996 is 699803121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 177271 + ... + 177953.

It is an arithmetic number, because the mean of its divisors is an integer number (4256532).

Almost surely, 2^121308996 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121308996, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153235152).

121308996 is an abundant number, since it is smaller than the sum of its proper divisors (185161308).

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

121308996 is a wasteful number, since it uses less digits than its factorization.

121308996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 769 (or 748 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 39.

The square root of 121308996 is about 11014.0363173543. The cubic root of 121308996 is about 495.0294115776.

The spelling of 121308996 in words is "one hundred twenty-one million, three hundred eight thousand, nine hundred ninety-six".