21030112304 has 40 divisors (see below), whose sum is σ = 42902841840. Its totient is φ = 9958733568.

The previous prime is 21030112277. The next prime is 21030112331. The reversal of 21030112304 is 40321103012.

It is an interprime number because it is at equal distance from previous prime (21030112277) and next prime (21030112331).

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, 1328822 + ... + 1344554.

It is an arithmetic number, because the mean of its divisors is an integer number (1072571046).

Almost surely, 2^21030112304 is an apocalyptic number.

It is an amenable number.

21030112304 is an abundant number, since it is smaller than the sum of its proper divisors (21872729536).

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

21030112304 is a wasteful number, since it uses less digits than its factorization.

21030112304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20157 (or 20151 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21030112304 its reverse (40321103012), we get a palindrome (61351215316).

The spelling of 21030112304 in words is "twenty-one billion, thirty million, one hundred twelve thousand, three hundred four".