1241101643 has 16 divisors (see below), whose sum is σ = 1373054976. Its totient is φ = 1115832960.

The previous prime is 1241101633. The next prime is 1241101649. The reversal of 1241101643 is 3461011421.

It is a cyclic number.

It is not a de Polignac number, because 1241101643 - 2⁶ = 1241101579 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1241101649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385880 + ... + 389082.

It is an arithmetic number, because the mean of its divisors is an integer number (85815936).

Almost surely, 2^1241101643 is an apocalyptic number.

1241101643 is a deficient number, since it is larger than the sum of its proper divisors (131953333).

1241101643 is a wasteful number, since it uses less digits than its factorization.

1241101643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4234.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1241101643 is about 35229.2725300992. The cubic root of 1241101643 is about 1074.6551316325.

The spelling of 1241101643 in words is "one billion, two hundred forty-one million, one hundred one thousand, six hundred forty-three".