21301132430 has 16 divisors (see below), whose sum is σ = 40597452720. Its totient is φ = 8019249792.

The previous prime is 21301132399. The next prime is 21301132469. The reversal of 21301132430 is 3423110312.

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, 62650220 + ... + 62650559.

It is an arithmetic number, because the mean of its divisors is an integer number (2537340795).

Almost surely, 2^21301132430 is an apocalyptic number.

21301132430 is a deficient number, since it is larger than the sum of its proper divisors (19296320290).

21301132430 is a wasteful number, since it uses less digits than its factorization.

21301132430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125300803.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21301132430 its reverse (3423110312), we get a palindrome (24724242742).

The spelling of 21301132430 in words is "twenty-one billion, three hundred one million, one hundred thirty-two thousand, four hundred thirty".