21040143110 has 16 divisors (see below), whose sum is σ = 43282580256. Its totient is φ = 7213763328.

The previous prime is 21040143101. The next prime is 21040143169. The reversal of 21040143110 is 1134104012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150286667 + ... + 150286806.

It is an arithmetic number, because the mean of its divisors is an integer number (2705161266).

Almost surely, 2^21040143110 is an apocalyptic number.

21040143110 is an abundant number, since it is smaller than the sum of its proper divisors (22242437146).

21040143110 is a wasteful number, since it uses less digits than its factorization.

21040143110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300573487.

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

Adding to 21040143110 its reverse (1134104012), we get a palindrome (22174247122).

The spelling of 21040143110 in words is "twenty-one billion, forty million, one hundred forty-three thousand, one hundred ten".