11010434821 has 2 divisors, whose sum is σ = 11010434822. Its totient is φ = 11010434820.

The previous prime is 11010434807. The next prime is 11010434873. The reversal of 11010434821 is 12843401011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9108602721 + 1901832100 = 95439^2 + 43610^2 .

It is a cyclic number.

It is not a de Polignac number, because 11010434821 - 2¹¹ = 11010432773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11010434891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505217410 + 5505217411.

It is an arithmetic number, because the mean of its divisors is an integer number (5505217411).

Almost surely, 2^11010434821 is an apocalyptic number.

It is an amenable number.

11010434821 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010434821 is an equidigital number, since it uses as much as digits as its factorization.

11010434821 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

Adding to 11010434821 its reverse (12843401011), we get a palindrome (23853835832).

The spelling of 11010434821 in words is "eleven billion, ten million, four hundred thirty-four thousand, eight hundred twenty-one".