11012825921 has 2 divisors, whose sum is σ = 11012825922. Its totient is φ = 11012825920.

The previous prime is 11012825899. The next prime is 11012826031. The reversal of 11012825921 is 12952821011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5888413696 + 5124412225 = 76736^2 + 71585^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012825921 - 2¹⁸ = 11012563777 is a prime.

It is not a weakly prime, because it can be changed into another prime (11012825221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506412960 + 5506412961.

It is an arithmetic number, because the mean of its divisors is an integer number (5506412961).

Almost surely, 2^11012825921 is an apocalyptic number.

It is an amenable number.

11012825921 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012825921 is an equidigital number, since it uses as much as digits as its factorization.

11012825921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 32.

The spelling of 11012825921 in words is "eleven billion, twelve million, eight hundred twenty-five thousand, nine hundred twenty-one".