11212003391 has 2 divisors, whose sum is σ = 11212003392. Its totient is φ = 11212003390.

The previous prime is 11212003373. The next prime is 11212003393. The reversal of 11212003391 is 19330021211.

11212003391 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11212003391 - 2²² = 11207809087 is a prime.

Together with 11212003393, 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 (11212003393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606001695 + 5606001696.

It is an arithmetic number, because the mean of its divisors is an integer number (5606001696).

Almost surely, 2^11212003391 is an apocalyptic number.

11212003391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212003391 is an equidigital number, since it uses as much as digits as its factorization.

11212003391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 11212003391 in words is "eleven billion, two hundred twelve million, three thousand, three hundred ninety-one".