121104045013 has 4 divisors (see below), whose sum is σ = 138404622880. Its totient is φ = 103803467148.

The previous prime is 121104044959. The next prime is 121104045019. The reversal of 121104045013 is 310540401121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310540401121 = 6397 ⋅48544693.

It is a cyclic number.

It is not a de Polignac number, because 121104045013 - 2¹⁷ = 121103913941 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 (121104045019) 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, 8650288923 + ... + 8650288936.

It is an arithmetic number, because the mean of its divisors is an integer number (34601155720).

Almost surely, 2^121104045013 is an apocalyptic number.

It is an amenable number.

121104045013 is a deficient number, since it is larger than the sum of its proper divisors (17300577867).

121104045013 is an equidigital number, since it uses as much as digits as its factorization.

121104045013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17300577866.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 121104045013 its reverse (310540401121), we get a palindrome (431644446134).

The spelling of 121104045013 in words is "one hundred twenty-one billion, one hundred four million, forty-five thousand, thirteen".