121104727061 has 4 divisors (see below), whose sum is σ = 121235088300. Its totient is φ = 120974365824.

The previous prime is 121104726991. The next prime is 121104727067. The reversal of 121104727061 is 160727401121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11447716036 + 109657011025 = 106994^2 + 331145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121104727061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121104727067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65179226 + ... + 65181083.

It is an arithmetic number, because the mean of its divisors is an integer number (30308772075).

Almost surely, 2^121104727061 is an apocalyptic number.

It is an amenable number.

121104727061 is a deficient number, since it is larger than the sum of its proper divisors (130361239).

121104727061 is an equidigital number, since it uses as much as digits as its factorization.

121104727061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130361238.

The product of its (nonzero) digits is 4704, while the sum is 32.

The spelling of 121104727061 in words is "one hundred twenty-one billion, one hundred four million, seven hundred twenty-seven thousand, sixty-one".