1104321211421 has 2 divisors, whose sum is σ = 1104321211422. Its totient is φ = 1104321211420.

The previous prime is 1104321211381. The next prime is 1104321211423. The reversal of 1104321211421 is 1241121234011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1084901395396 + 19419816025 = 1041586^2 + 139355^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1104321211421 is a prime.

Together with 1104321211423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1104321211423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552160605710 + 552160605711.

It is an arithmetic number, because the mean of its divisors is an integer number (552160605711).

Almost surely, 2^{1104321211421} is an apocalyptic number.

It is an amenable number.

1104321211421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1104321211421 is an equidigital number, since it uses as much as digits as its factorization.

1104321211421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 1104321211421 its reverse (1241121234011), we get a palindrome (2345442445432).

The spelling of 1104321211421 in words is "one trillion, one hundred four billion, three hundred twenty-one million, two hundred eleven thousand, four hundred twenty-one".