1241542123 has 2 divisors, whose sum is σ = 1241542124. Its totient is φ = 1241542122.

The previous prime is 1241542103. The next prime is 1241542153. The reversal of 1241542123 is 3212451421.

It is a weak prime.

It is an emirp because it is prime and its reverse (3212451421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1241542123 - 2²⁹ = 704671211 is a prime.

It is not a weakly prime, because it can be changed into another prime (1241542103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620771061 + 620771062.

It is an arithmetic number, because the mean of its divisors is an integer number (620771062).

Almost surely, 2^1241542123 is an apocalyptic number.

1241542123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1241542123 is an equidigital number, since it uses as much as digits as its factorization.

1241542123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1920, while the sum is 25.

The square root of 1241542123 is about 35235.5235948042. The cubic root of 1241542123 is about 1074.7822520569.

Adding to 1241542123 its reverse (3212451421), we get a palindrome (4453993544).

The spelling of 1241542123 in words is "one billion, two hundred forty-one million, five hundred forty-two thousand, one hundred twenty-three".