121113660 has 24 divisors (see below), whose sum is σ = 339118416. Its totient is φ = 32296960.

The previous prime is 121113659. The next prime is 121113679. The reversal of 121113660 is 66311121.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1009221 + ... + 1009340.

It is an arithmetic number, because the mean of its divisors is an integer number (14129934).

Almost surely, 2^121113660 is an apocalyptic number.

121113660 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121113660 is an abundant number, since it is smaller than the sum of its proper divisors (218004756).

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

121113660 is a wasteful number, since it uses less digits than its factorization.

121113660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018573 (or 2018571 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 121113660 is about 11005.1651509643. The cubic root of 121113660 is about 494.7635642607.

Adding to 121113660 its reverse (66311121), we get a palindrome (187424781).

The spelling of 121113660 in words is "one hundred twenty-one million, one hundred thirteen thousand, six hundred sixty".