21143010130 has 128 divisors (see below), whose sum is σ = 44761559040. Its totient is φ = 7113173760.

The previous prime is 21143010121. The next prime is 21143010131. The reversal of 21143010130 is 3101034112.

It is not an unprimeable number, because it can be changed into a prime (21143010131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11857219 + ... + 11859001.

It is an arithmetic number, because the mean of its divisors is an integer number (349699680).

Almost surely, 2^21143010130 is an apocalyptic number.

21143010130 is an abundant number, since it is smaller than the sum of its proper divisors (23618548910).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21143010130 is a wasteful number, since it uses less digits than its factorization.

21143010130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 21143010130 its reverse (3101034112), we get a palindrome (24244044242).

The spelling of 21143010130 in words is "twenty-one billion, one hundred forty-three million, ten thousand, one hundred thirty".