21111248279483 has 2 divisors, whose sum is σ = 21111248279484. Its totient is φ = 21111248279482.

The previous prime is 21111248279477. The next prime is 21111248279497. The reversal of 21111248279483 is 38497284211112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21111248279483 - 2⁴ = 21111248279467 is a prime.

It is not a weakly prime, because it can be changed into another prime (21111248279413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555624139741 + 10555624139742.

It is an arithmetic number, because the mean of its divisors is an integer number (10555624139742).

Almost surely, 2^{21111248279483} is an apocalyptic number.

21111248279483 is a deficient number, since it is larger than the sum of its proper divisors (1).

21111248279483 is an equidigital number, since it uses as much as digits as its factorization.

21111248279483 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1548288, while the sum is 53.

The spelling of 21111248279483 in words is "twenty-one trillion, one hundred eleven billion, two hundred forty-eight million, two hundred seventy-nine thousand, four hundred eighty-three".