11372820391 has 2 divisors, whose sum is σ = 11372820392. Its totient is φ = 11372820390.

The previous prime is 11372820379. The next prime is 11372820421. The reversal of 11372820391 is 19302827311.

It is a weak prime.

It is an emirp because it is prime and its reverse (19302827311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11372820391 - 2³³ = 2782885799 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11372820391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11372820331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5686410195 + 5686410196.

It is an arithmetic number, because the mean of its divisors is an integer number (5686410196).

Almost surely, 2^11372820391 is an apocalyptic number.

11372820391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11372820391 is an equidigital number, since it uses as much as digits as its factorization.

11372820391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 11372820391 in words is "eleven billion, three hundred seventy-two million, eight hundred twenty thousand, three hundred ninety-one".