121104560 has 20 divisors (see below), whose sum is σ = 281568288. Its totient is φ = 48441792.

The previous prime is 121104547. The next prime is 121104587. The reversal of 121104560 is 65401121.

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 756824 + ... + 756983.

Almost surely, 2^121104560 is an apocalyptic number.

121104560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121104560 is an abundant number, since it is smaller than the sum of its proper divisors (160463728).

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

121104560 is a wasteful number, since it uses less digits than its factorization.

121104560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1513820 (or 1513814 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

The square root of 121104560 is about 11004.7517009699. The cubic root of 121104560 is about 494.7511724265.

Adding to 121104560 its reverse (65401121), we get a palindrome (186505681).

The spelling of 121104560 in words is "one hundred twenty-one million, one hundred four thousand, five hundred sixty".