1104242021 has 8 divisors (see below), whose sum is σ = 1196388864. Its totient is φ = 1015116480.

The previous prime is 1104242003. The next prime is 1104242039. The reversal of 1104242021 is 1202424011.

It is an interprime number because it is at equal distance from previous prime (1104242003) and next prime (1104242039).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1104242021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104242081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 754565 + ... + 756026.

It is an arithmetic number, because the mean of its divisors is an integer number (149548608).

Almost surely, 2^1104242021 is an apocalyptic number.

It is an amenable number.

1104242021 is a deficient number, since it is larger than the sum of its proper divisors (92146843).

1104242021 is a wasteful number, since it uses less digits than its factorization.

1104242021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510651.

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 1104242021 is about 33230.1372401620. The cubic root of 1104242021 is about 1033.6053690874.

Adding to 1104242021 its reverse (1202424011), we get a palindrome (2306666032).

The spelling of 1104242021 in words is "one billion, one hundred four million, two hundred forty-two thousand, twenty-one".