21130323214 has 96 divisors (see below), whose sum is σ = 43387094016. Its totient is φ = 7586873280.

The previous prime is 21130323143. The next prime is 21130323329. The reversal of 21130323214 is 41232303112.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15456759 + ... + 15458125.

It is an arithmetic number, because the mean of its divisors is an integer number (451948896).

Almost surely, 2^21130323214 is an apocalyptic number.

21130323214 is an abundant number, since it is smaller than the sum of its proper divisors (22256770802).

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

21130323214 is a wasteful number, since it uses less digits than its factorization.

21130323214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2510 (or 2503 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 21130323214 its reverse (41232303112), we get a palindrome (62362626326).

The spelling of 21130323214 in words is "twenty-one billion, one hundred thirty million, three hundred twenty-three thousand, two hundred fourteen".