1241011563 has 16 divisors (see below), whose sum is σ = 1812672000. Its totient is φ = 748976480.

The previous prime is 1241011559. The next prime is 1241011567. The reversal of 1241011563 is 3651101421.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1241011559) and next prime (1241011567).

It is a cyclic number.

It is not a de Polignac number, because 1241011563 - 2² = 1241011559 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1241011567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70788 + ... + 86561.

It is an arithmetic number, because the mean of its divisors is an integer number (113292000).

Almost surely, 2^1241011563 is an apocalyptic number.

1241011563 is a deficient number, since it is larger than the sum of its proper divisors (571660437).

1241011563 is a wasteful number, since it uses less digits than its factorization.

1241011563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157602.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1241011563 is about 35227.9940246390. The cubic root of 1241011563 is about 1074.6291312703.

Adding to 1241011563 its reverse (3651101421), we get a palindrome (4892112984).

The spelling of 1241011563 in words is "one billion, two hundred forty-one million, eleven thousand, five hundred sixty-three".