121103642 has 16 divisors (see below), whose sum is σ = 200886912. Its totient is φ = 54292320.

The previous prime is 121103539. The next prime is 121103651. The reversal of 121103642 is 246301121.

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, 36098 + ... + 39309.

It is an arithmetic number, because the mean of its divisors is an integer number (12555432).

Almost surely, 2^121103642 is an apocalyptic number.

121103642 is a deficient number, since it is larger than the sum of its proper divisors (79783270).

121103642 is a wasteful number, since it uses less digits than its factorization.

121103642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75493.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 121103642 is about 11004.7099916354. The cubic root of 121103642 is about 494.7499223147.

Adding to 121103642 its reverse (246301121), we get a palindrome (367404763).

The spelling of 121103642 in words is "one hundred twenty-one million, one hundred three thousand, six hundred forty-two".