21143040010 has 32 divisors (see below), whose sum is σ = 38587207680. Its totient is φ = 8340296832.

The previous prime is 21143039989. The next prime is 21143040059. The reversal of 21143040010 is 1004034112.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 162246 + ... + 261934.

It is an arithmetic number, because the mean of its divisors is an integer number (1205850240).

Almost surely, 2^21143040010 is an apocalyptic number.

21143040010 is a deficient number, since it is larger than the sum of its proper divisors (17444167670).

21143040010 is a wasteful number, since it uses less digits than its factorization.

21143040010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99990.

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

Adding to 21143040010 its reverse (1004034112), we get a palindrome (22147074122).

The spelling of 21143040010 in words is "twenty-one billion, one hundred forty-three million, forty thousand, ten".