121103634 has 16 divisors (see below), whose sum is σ = 242465472. Its totient is φ = 40324848.

The previous prime is 121103539. The next prime is 121103651. The reversal of 121103634 is 436301121.

It is a self number, because there is not a number n which added to its sum of digits gives 121103634.

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, 4369 + ... + 16164.

It is an arithmetic number, because the mean of its divisors is an integer number (15154092).

Almost surely, 2^121103634 is an apocalyptic number.

121103634 is an abundant number, since it is smaller than the sum of its proper divisors (121361838).

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

121103634 is a wasteful number, since it uses less digits than its factorization.

121103634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21521.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 121103634 is about 11004.7096281547. The cubic root of 121103634 is about 494.7499114204.

Adding to 121103634 its reverse (436301121), we get a palindrome (557404755).

The spelling of 121103634 in words is "one hundred twenty-one million, one hundred three thousand, six hundred thirty-four".