121321096 has 16 divisors (see below), whose sum is σ = 244975500. Its totient is φ = 55994304.

The previous prime is 121321069. The next prime is 121321097. The reversal of 121321096 is 690123121.

It can be written as a sum of positive squares in 2 ways, for example, as 86676100 + 34644996 = 9310^2 + 5886^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121321096.

It is not an unprimeable number, because it can be changed into a prime (121321097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 583171 + ... + 583378.

Almost surely, 2^121321096 is an apocalyptic number.

It is an amenable number.

121321096 is an abundant number, since it is smaller than the sum of its proper divisors (123654404).

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

121321096 is a wasteful number, since it uses less digits than its factorization.

121321096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166568 (or 1166564 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 121321096 is about 11014.5856027360. The cubic root of 121321096 is about 495.0458699798.

The spelling of 121321096 in words is "one hundred twenty-one million, three hundred twenty-one thousand, ninety-six".