21143140103 has 8 divisors (see below), whose sum is σ = 22658689248. Its totient is φ = 19677281184.

The previous prime is 21143140097. The next prime is 21143140111. The reversal of 21143140103 is 30104134112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21143140103 - 2⁸ = 21143139847 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 (21143140133) 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 7 ways as a sum of consecutive naturals, for example, 12421676 + ... + 12423377.

It is an arithmetic number, because the mean of its divisors is an integer number (2832336156).

Almost surely, 2^21143140103 is an apocalyptic number.

21143140103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21143140103 is a deficient number, since it is larger than the sum of its proper divisors (1515549145).

21143140103 is a wasteful number, since it uses less digits than its factorization.

21143140103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24845113.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21143140103 its reverse (30104134112), we get a palindrome (51247274215).

The spelling of 21143140103 in words is "twenty-one billion, one hundred forty-three million, one hundred forty thousand, one hundred three".