4921112111393 has 2 divisors, whose sum is σ = 4921112111394. Its totient is φ = 4921112111392.

The previous prime is 4921112111281. The next prime is 4921112111417. The reversal of 4921112111393 is 3931112111294.

4921112111393 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4187867559184 + 733244552209 = 2046428^2 + 856297^2 .

It is a cyclic number.

It is not a de Polignac number, because 4921112111393 - 2⁸ = 4921112111137 is a prime.

It is not a weakly prime, because it can be changed into another prime (4921112101393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2460556055696 + 2460556055697.

It is an arithmetic number, because the mean of its divisors is an integer number (2460556055697).

Almost surely, 2^{4921112111393} is an apocalyptic number.

It is an amenable number.

4921112111393 is a deficient number, since it is larger than the sum of its proper divisors (1).

4921112111393 is an equidigital number, since it uses as much as digits as its factorization.

4921112111393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 38.

Subtracting from 4921112111393 its reverse (3931112111294), we obtain a palindrome (990000000099).

The spelling of 4921112111393 in words is "four trillion, nine hundred twenty-one billion, one hundred twelve million, one hundred eleven thousand, three hundred ninety-three".