21431114302 has 16 divisors (see below), whose sum is σ = 34685708400. Its totient is φ = 9872364672.

The previous prime is 21431114297. The next prime is 21431114321. The reversal of 21431114302 is 20341113412.

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, 774427 + ... + 801622.

It is an arithmetic number, because the mean of its divisors is an integer number (2167856775).

Almost surely, 2^21431114302 is an apocalyptic number.

21431114302 is a deficient number, since it is larger than the sum of its proper divisors (13254594098).

21431114302 is a wasteful number, since it uses less digits than its factorization.

21431114302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1576587.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 21431114302 its reverse (20341113412), we get a palindrome (41772227714).

The spelling of 21431114302 in words is "twenty-one billion, four hundred thirty-one million, one hundred fourteen thousand, three hundred two".