121103668 has 24 divisors (see below), whose sum is σ = 248117184. Its totient is φ = 50635200.

The previous prime is 121103657. The next prime is 121103683. The reversal of 121103668 is 866301121.

It is a Harshad number since it is a multiple of its sum of digits (28).

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, 51598 + ... + 53893.

It is an arithmetic number, because the mean of its divisors is an integer number (10338216).

Almost surely, 2^121103668 is an apocalyptic number.

It is an amenable number.

121103668 is an abundant number, since it is smaller than the sum of its proper divisors (127013516).

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

121103668 is a wasteful number, since it uses less digits than its factorization.

121103668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105543 (or 105541 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 121103668 is about 11004.7111729477. The cubic root of 121103668 is about 494.7499577210.

Adding to 121103668 its reverse (866301121), we get a palindrome (987404789).

It can be divided in two parts, 121103 and 668, that added together give a triangular number (121771 = T₄₉₃).

The spelling of 121103668 in words is "one hundred twenty-one million, one hundred three thousand, six hundred sixty-eight".