1242110741 has 2 divisors, whose sum is σ = 1242110742. Its totient is φ = 1242110740.

The previous prime is 1242110717. The next prime is 1242110801. The reversal of 1242110741 is 1470112421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1185424900 + 56685841 = 34430^2 + 7529^2 .

It is an emirp because it is prime and its reverse (1470112421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1242110741 - 2³⁰ = 168368917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1242110711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621055370 + 621055371.

It is an arithmetic number, because the mean of its divisors is an integer number (621055371).

Almost surely, 2^1242110741 is an apocalyptic number.

It is an amenable number.

1242110741 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242110741 is an equidigital number, since it uses as much as digits as its factorization.

1242110741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

The square root of 1242110741 is about 35243.5914883827. The cubic root of 1242110741 is about 1074.9463080449.

The spelling of 1242110741 in words is "one billion, two hundred forty-two million, one hundred ten thousand, seven hundred forty-one".