1104231021 has 4 divisors (see below), whose sum is σ = 1472308032. Its totient is φ = 736154012.

The previous prime is 1104230969. The next prime is 1104231049. The reversal of 1104231021 is 1201324011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1201324011 = 3 ⋅400441337.

It is a cyclic number.

It is not a de Polignac number, because 1104231021 - 2¹⁵ = 1104198253 is a prime.

It is a super-2 number, since 2×1104231021² = 2438652295477404882, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1104230021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184038501 + ... + 184038506.

It is an arithmetic number, because the mean of its divisors is an integer number (368077008).

Almost surely, 2^1104231021 is an apocalyptic number.

It is an amenable number.

1104231021 is a deficient number, since it is larger than the sum of its proper divisors (368077011).

1104231021 is an equidigital number, since it uses as much as digits as its factorization.

1104231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368077010.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1104231021 is about 33229.9717273428. The cubic root of 1104231021 is about 1033.6019369603.

Adding to 1104231021 its reverse (1201324011), we get a palindrome (2305555032).

The spelling of 1104231021 in words is "one billion, one hundred four million, two hundred thirty-one thousand, twenty-one".