11101211991923 has 2 divisors, whose sum is σ = 11101211991924. Its totient is φ = 11101211991922.

The previous prime is 11101211991917. The next prime is 11101211991929. The reversal of 11101211991923 is 32919911210111.

It is a balanced prime because it is at equal distance from previous prime (11101211991917) and next prime (11101211991929).

It is a cyclic number.

It is not a de Polignac number, because 11101211991923 - 2⁴ = 11101211991907 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101211991929) 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, 5550605995961 + 5550605995962.

It is an arithmetic number, because the mean of its divisors is an integer number (5550605995962).

Almost surely, 2^{11101211991923} is an apocalyptic number.

11101211991923 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101211991923 is an equidigital number, since it uses as much as digits as its factorization.

11101211991923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 41.

The spelling of 11101211991923 in words is "eleven trillion, one hundred one billion, two hundred eleven million, nine hundred ninety-one thousand, nine hundred twenty-three".