121104121123 has 2 divisors, whose sum is σ = 121104121124. Its totient is φ = 121104121122.

The previous prime is 121104121067. The next prime is 121104121169. The reversal of 121104121123 is 321121401121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121104121123 - 2¹³ = 121104112931 is a prime.

It is a super-2 number, since 2×121104121123² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 121104121123.

It is not a weakly prime, because it can be changed into another prime (121104122123) 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 as a sum of consecutive naturals, namely, 60552060561 + 60552060562.

It is an arithmetic number, because the mean of its divisors is an integer number (60552060562).

Almost surely, 2^121104121123 is an apocalyptic number.

121104121123 is a deficient number, since it is larger than the sum of its proper divisors (1).

121104121123 is an equidigital number, since it uses as much as digits as its factorization.

121104121123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 121104121123 its reverse (321121401121), we get a palindrome (442225522244).

The spelling of 121104121123 in words is "one hundred twenty-one billion, one hundred four million, one hundred twenty-one thousand, one hundred twenty-three".