21306032654430 has 32 divisors (see below), whose sum is σ = 52516491302304. Its totient is φ = 5528051715456.

The previous prime is 21306032654411. The next prime is 21306032654477. The reversal of 21306032654430 is 3445623060312.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9597310897 + ... + 9597313116.

It is an arithmetic number, because the mean of its divisors is an integer number (1641140353197).

Almost surely, 2^{21306032654430} is an apocalyptic number.

21306032654430 is an abundant number, since it is smaller than the sum of its proper divisors (31210458647874).

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

21306032654430 is a wasteful number, since it uses less digits than its factorization.

21306032654430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19194624060.

The product of its (nonzero) digits is 311040, while the sum is 39.

The spelling of 21306032654430 in words is "twenty-one trillion, three hundred six billion, thirty-two million, six hundred fifty-four thousand, four hundred thirty".