21141400103 has 2 divisors, whose sum is σ = 21141400104. Its totient is φ = 21141400102.

The previous prime is 21141400079. The next prime is 21141400117. The reversal of 21141400103 is 30100414112.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21141400103 - 2¹⁶ = 21141334567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21141400183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10570700051 + 10570700052.

It is an arithmetic number, because the mean of its divisors is an integer number (10570700052).

Almost surely, 2^21141400103 is an apocalyptic number.

21141400103 is a deficient number, since it is larger than the sum of its proper divisors (1).

21141400103 is an equidigital number, since it uses as much as digits as its factorization.

21141400103 is an evil number, because the sum of its binary digits is even.

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

Adding to 21141400103 its reverse (30100414112), we get a palindrome (51241814215).

The spelling of 21141400103 in words is "twenty-one billion, one hundred forty-one million, four hundred thousand, one hundred three".