121002320 has 40 divisors (see below), whose sum is σ = 282839040. Its totient is φ = 48141440.

The previous prime is 121002293. The next prime is 121002337. The reversal of 121002320 is 23200121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×121002320² = 29283122890764800, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 11321 + ... + 19239.

It is an arithmetic number, because the mean of its divisors is an integer number (7070976).

Almost surely, 2^121002320 is an apocalyptic number.

121002320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121002320 is an abundant number, since it is smaller than the sum of its proper divisors (161836720).

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

121002320 is a wasteful number, since it uses less digits than its factorization.

121002320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123 (or 8117 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 121002320 is about 11000.1054540400. The cubic root of 121002320 is about 494.6119054404.

Adding to 121002320 its reverse (23200121), we get a palindrome (144202441).

The spelling of 121002320 in words is "one hundred twenty-one million, two thousand, three hundred twenty".