121320966 has 64 divisors (see below), whose sum is σ = 279175680. Its totient is φ = 34836480.

The previous prime is 121320937. The next prime is 121320967. The reversal of 121320966 is 669023121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121320967) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 104646 + ... + 105798.

It is an arithmetic number, because the mean of its divisors is an integer number (4362120).

Almost surely, 2^121320966 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121320966, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139587840).

121320966 is an abundant number, since it is smaller than the sum of its proper divisors (157854714).

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

121320966 is a wasteful number, since it uses less digits than its factorization.

121320966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1261.

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 121320966 is about 11014.5797014684. The cubic root of 121320966 is about 495.0456931598.

The spelling of 121320966 in words is "one hundred twenty-one million, three hundred twenty thousand, nine hundred sixty-six".