21042430122302 has 32 divisors (see below), whose sum is σ = 31810215490560. Its totient is φ = 10439372180160.

The previous prime is 21042430122299. The next prime is 21042430122323. The reversal of 21042430122302 is 20322103424012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330517349 + ... + 330581007.

It is an arithmetic number, because the mean of its divisors is an integer number (994069234080).

Almost surely, 2^{21042430122302} is an apocalyptic number.

21042430122302 is a deficient number, since it is larger than the sum of its proper divisors (10767785368258).

21042430122302 is a wasteful number, since it uses less digits than its factorization.

21042430122302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66368.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 21042430122302 its reverse (20322103424012), we get a palindrome (41364533546314).

The spelling of 21042430122302 in words is "twenty-one trillion, forty-two billion, four hundred thirty million, one hundred twenty-two thousand, three hundred two".