21106746103 has 2 divisors, whose sum is σ = 21106746104. Its totient is φ = 21106746102.

The previous prime is 21106746097. The next prime is 21106746109. The reversal of 21106746103 is 30164760112.

It is a balanced prime because it is at equal distance from previous prime (21106746097) and next prime (21106746109).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21106746103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21106746109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10553373051 + 10553373052.

It is an arithmetic number, because the mean of its divisors is an integer number (10553373052).

Almost surely, 2^21106746103 is an apocalyptic number.

21106746103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21106746103 is an equidigital number, since it uses as much as digits as its factorization.

21106746103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 21106746103 in words is "twenty-one billion, one hundred six million, seven hundred forty-six thousand, one hundred three".