10218899123 has 2 divisors, whose sum is σ = 10218899124. Its totient is φ = 10218899122.

The previous prime is 10218899083. The next prime is 10218899227. The reversal of 10218899123 is 32199881201.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10218899123 is a prime.

It is not a weakly prime, because it can be changed into another prime (10218899323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5109449561 + 5109449562.

It is an arithmetic number, because the mean of its divisors is an integer number (5109449562).

Almost surely, 2^10218899123 is an apocalyptic number.

10218899123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10218899123 is an equidigital number, since it uses as much as digits as its factorization.

10218899123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 44.

The spelling of 10218899123 in words is "ten billion, two hundred eighteen million, eight hundred ninety-nine thousand, one hundred twenty-three".