1241666123 has 2 divisors, whose sum is σ = 1241666124. Its totient is φ = 1241666122.

The previous prime is 1241666119. The next prime is 1241666143. The reversal of 1241666123 is 3216661421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1241666123 - 2² = 1241666119 is a prime.

It is a super-2 number, since 2×1241666123² = 3083469522011702258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1241666123.

It is not a weakly prime, because it can be changed into another prime (1241666113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620833061 + 620833062.

It is an arithmetic number, because the mean of its divisors is an integer number (620833062).

Almost surely, 2^1241666123 is an apocalyptic number.

1241666123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241666123 is an equidigital number, since it uses as much as digits as its factorization.

1241666123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 32.

The square root of 1241666123 is about 35237.2831387438. The cubic root of 1241666123 is about 1074.8180324411.

The spelling of 1241666123 in words is "one billion, two hundred forty-one million, six hundred sixty-six thousand, one hundred twenty-three".