21234152114 has 16 divisors (see below), whose sum is σ = 36839976768. Its totient is φ = 8990707632.

The previous prime is 21234152101. The next prime is 21234152129. The reversal of 21234152114 is 41125143212.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9135737 + ... + 9138060.

It is an arithmetic number, because the mean of its divisors is an integer number (2302498548).

Almost surely, 2^21234152114 is an apocalyptic number.

21234152114 is a deficient number, since it is larger than the sum of its proper divisors (15605824654).

21234152114 is a wasteful number, since it uses less digits than its factorization.

21234152114 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18273889.

The product of its digits is 1920, while the sum is 26.

Adding to 21234152114 its reverse (41125143212), we get a palindrome (62359295326).

The spelling of 21234152114 in words is "twenty-one billion, two hundred thirty-four million, one hundred fifty-two thousand, one hundred fourteen".