121321000110 has 32 divisors (see below), whose sum is σ = 291192793632. Its totient is φ = 32349778560.

The previous prime is 121321000109. The next prime is 121321000147. The reversal of 121321000110 is 11000123121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259200 + ... + 556620.

It is an arithmetic number, because the mean of its divisors is an integer number (9099774801).

Almost surely, 2^121321000110 is an apocalyptic number.

121321000110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121321000110 is an abundant number, since it is smaller than the sum of its proper divisors (169871793522).

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

121321000110 is a wasteful number, since it uses less digits than its factorization.

121321000110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311028.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 121321000110 its reverse (11000123121), we get a palindrome (132321123231).

The spelling of 121321000110 in words is "one hundred twenty-one billion, three hundred twenty-one million, one hundred ten", and thus it is an aban number.