21132430014 has 16 divisors (see below), whose sum is σ = 42309220752. Its totient is φ = 7036749888.

The previous prime is 21132430003. The next prime is 21132430031. The reversal of 21132430014 is 41003423112.

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, 1842169 + ... + 1853604.

It is an arithmetic number, because the mean of its divisors is an integer number (2644326297).

Almost surely, 2^21132430014 is an apocalyptic number.

21132430014 is an abundant number, since it is smaller than the sum of its proper divisors (21176790738).

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

21132430014 is a wasteful number, since it uses less digits than its factorization.

21132430014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696731.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21132430014 its reverse (41003423112), we get a palindrome (62135853126).

The spelling of 21132430014 in words is "twenty-one billion, one hundred thirty-two million, four hundred thirty thousand, fourteen".