21234016151 has 8 divisors (see below), whose sum is σ = 21484866144. Its totient is φ = 20983818240.

The previous prime is 21234016127. The next prime is 21234016157. The reversal of 21234016151 is 15161043212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21234016151 - 2⁶ = 21234016087 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21234016151.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21234016157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97355 + ... + 227916.

It is an arithmetic number, because the mean of its divisors is an integer number (2685608268).

Almost surely, 2^21234016151 is an apocalyptic number.

21234016151 is a deficient number, since it is larger than the sum of its proper divisors (250849993).

21234016151 is an equidigital number, since it uses as much as digits as its factorization.

21234016151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326041.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 21234016151 its reverse (15161043212), we get a palindrome (36395059363).

The spelling of 21234016151 in words is "twenty-one billion, two hundred thirty-four million, sixteen thousand, one hundred fifty-one".