21314235151 has 16 divisors (see below), whose sum is σ = 23876784288. Its totient is φ = 18862387200.

The previous prime is 21314235149. The next prime is 21314235181. The reversal of 21314235151 is 15153241312.

It is not a de Polignac number, because 21314235151 - 2¹ = 21314235149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21314235181) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98650 + ... + 228823.

It is an arithmetic number, because the mean of its divisors is an integer number (1492299018).

Almost surely, 2^21314235151 is an apocalyptic number.

21314235151 is a deficient number, since it is larger than the sum of its proper divisors (2562549137).

21314235151 is a wasteful number, since it uses less digits than its factorization.

21314235151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327642.

The product of its digits is 3600, while the sum is 28.

Adding to 21314235151 its reverse (15153241312), we get a palindrome (36467476463).

The spelling of 21314235151 in words is "twenty-one billion, three hundred fourteen million, two hundred thirty-five thousand, one hundred fifty-one".