1104421421 has 2 divisors, whose sum is σ = 1104421422. Its totient is φ = 1104421420.

The previous prime is 1104421393. The next prime is 1104421427. The reversal of 1104421421 is 1241244011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 931104196 + 173317225 = 30514^2 + 13165^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1104421421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1104421393 and 1104421402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1104421427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552210710 + 552210711.

It is an arithmetic number, because the mean of its divisors is an integer number (552210711).

Almost surely, 2^1104421421 is an apocalyptic number.

It is an amenable number.

1104421421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1104421421 is an equidigital number, since it uses as much as digits as its factorization.

1104421421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 256, while the sum is 20.

The square root of 1104421421 is about 33232.8364874261. The cubic root of 1104421421 is about 1033.6613407430.

Adding to 1104421421 its reverse (1241244011), we get a palindrome (2345665432).

The spelling of 1104421421 in words is "one billion, one hundred four million, four hundred twenty-one thousand, four hundred twenty-one".