21234014151 has 8 divisors (see below), whose sum is σ = 32356593024. Its totient is φ = 12133722360.

The previous prime is 21234014147. The next prime is 21234014171. The reversal of 21234014151 is 15141043212.

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

It is not a de Polignac number, because 21234014151 - 2² = 21234014147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21234014171) 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, 505571745 + ... + 505571786.

It is an arithmetic number, because the mean of its divisors is an integer number (4044574128).

Almost surely, 2^21234014151 is an apocalyptic number.

21234014151 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

21234014151 is a deficient number, since it is larger than the sum of its proper divisors (11122578873).

21234014151 is a wasteful number, since it uses less digits than its factorization.

21234014151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1011143541.

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 21234014151 its reverse (15141043212), we get a palindrome (36375057363).

The spelling of 21234014151 in words is "twenty-one billion, two hundred thirty-four million, fourteen thousand, one hundred fifty-one".