1103123214421 has 2 divisors, whose sum is σ = 1103123214422. Its totient is φ = 1103123214420.

The previous prime is 1103123214419. The next prime is 1103123214499. The reversal of 1103123214421 is 1244123213011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 679823336196 + 423299878225 = 824514^2 + 650615^2 .

It is a cyclic number.

It is not a de Polignac number, because 1103123214421 - 2¹ = 1103123214419 is a prime.

Together with 1103123214419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1103123014421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 551561607210 + 551561607211.

It is an arithmetic number, because the mean of its divisors is an integer number (551561607211).

Almost surely, 2^{1103123214421} is an apocalyptic number.

It is an amenable number.

1103123214421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1103123214421 is an equidigital number, since it uses as much as digits as its factorization.

1103123214421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1103123214421 its reverse (1244123213011), we get a palindrome (2347246427432).

The spelling of 1103123214421 in words is "one trillion, one hundred three billion, one hundred twenty-three million, two hundred fourteen thousand, four hundred twenty-one".