21210114342 has 16 divisors (see below), whose sum is σ = 43454868912. Its totient is φ = 6897598080.

The previous prime is 21210114307. The next prime is 21210114353. The reversal of 21210114342 is 24341101212.

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, 43109743 + ... + 43110234.

It is an arithmetic number, because the mean of its divisors is an integer number (2715929307).

Almost surely, 2^21210114342 is an apocalyptic number.

21210114342 is an abundant number, since it is smaller than the sum of its proper divisors (22244754570).

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

21210114342 is a wasteful number, since it uses less digits than its factorization.

21210114342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86220023.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 21210114342 its reverse (24341101212), we get a palindrome (45551215554).

The spelling of 21210114342 in words is "twenty-one billion, two hundred ten million, one hundred fourteen thousand, three hundred forty-two".