10211420123 has 2 divisors, whose sum is σ = 10211420124. Its totient is φ = 10211420122.

The previous prime is 10211420113. The next prime is 10211420143. The reversal of 10211420123 is 32102411201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10211420123 is a prime.

It is not a weakly prime, because it can be changed into another prime (10211420113) 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, 5105710061 + 5105710062.

It is an arithmetic number, because the mean of its divisors is an integer number (5105710062).

Almost surely, 2^10211420123 is an apocalyptic number.

10211420123 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211420123 is an equidigital number, since it uses as much as digits as its factorization.

10211420123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 10211420123 its reverse (32102411201), we get a palindrome (42313831324).

The spelling of 10211420123 in words is "ten billion, two hundred eleven million, four hundred twenty thousand, one hundred twenty-three".