21411142103 has 4 divisors (see below), whose sum is σ = 23058153048. Its totient is φ = 19764131160.

The previous prime is 21411142043. The next prime is 21411142127. The reversal of 21411142103 is 30124111412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21411142103 - 2¹⁴ = 21411125719 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21411142153) 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 in 3 ways as a sum of consecutive naturals, for example, 823505453 + ... + 823505478.

It is an arithmetic number, because the mean of its divisors is an integer number (5764538262).

Almost surely, 2^21411142103 is an apocalyptic number.

21411142103 is a deficient number, since it is larger than the sum of its proper divisors (1647010945).

21411142103 is a wasteful number, since it uses less digits than its factorization.

21411142103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1647010944.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 21411142103 its reverse (30124111412), we get a palindrome (51535253515).

The spelling of 21411142103 in words is "twenty-one billion, four hundred eleven million, one hundred forty-two thousand, one hundred three".