11212520003 has 2 divisors, whose sum is σ = 11212520004. Its totient is φ = 11212520002.

The previous prime is 11212519999. The next prime is 11212520021. The reversal of 11212520003 is 30002521211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11212520003 - 2² = 11212519999 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11212510003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606260001 + 5606260002.

It is an arithmetic number, because the mean of its divisors is an integer number (5606260002).

Almost surely, 2^11212520003 is an apocalyptic number.

11212520003 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212520003 is an equidigital number, since it uses as much as digits as its factorization.

11212520003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 17.

The spelling of 11212520003 in words is "eleven billion, two hundred twelve million, five hundred twenty thousand, three".