21140210203 has 16 divisors (see below), whose sum is σ = 25155264960. Its totient is φ = 17388403200.

The previous prime is 21140210171. The next prime is 21140210213. The reversal of 21140210203 is 30201204112.

It is not a de Polignac number, because 21140210203 - 2⁵ = 21140210171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21140210213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 586258 + ... + 621271.

It is an arithmetic number, because the mean of its divisors is an integer number (1572204060).

Almost surely, 2^21140210203 is an apocalyptic number.

21140210203 is a deficient number, since it is larger than the sum of its proper divisors (4015054757).

21140210203 is a wasteful number, since it uses less digits than its factorization.

21140210203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207638.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21140210203 its reverse (30201204112), we get a palindrome (51341414315).

The spelling of 21140210203 in words is "twenty-one billion, one hundred forty million, two hundred ten thousand, two hundred three".