121119993 has 12 divisors (see below), whose sum is σ = 175079268. Its totient is φ = 80687520.

The previous prime is 121119983. The next prime is 121120009. The reversal of 121119993 is 399911121.

It can be written as a sum of positive squares in 2 ways, for example, as 56430144 + 64689849 = 7512^2 + 8043^2 .

It is not a de Polignac number, because 121119993 - 2⁵ = 121119961 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (121119983) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10623 + ... + 18843.

It is an arithmetic number, because the mean of its divisors is an integer number (14589939).

Almost surely, 2^121119993 is an apocalyptic number.

It is an amenable number.

121119993 is a deficient number, since it is larger than the sum of its proper divisors (53959275).

121119993 is a wasteful number, since it uses less digits than its factorization.

121119993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864 (or 9861 counting only the distinct ones).

The product of its digits is 4374, while the sum is 36.

The square root of 121119993 is about 11005.4528757339. The cubic root of 121119993 is about 494.7721877940.

The spelling of 121119993 in words is "one hundred twenty-one million, one hundred nineteen thousand, nine hundred ninety-three".