21314355151 has 2 divisors, whose sum is σ = 21314355152. Its totient is φ = 21314355150.

The previous prime is 21314355137. The next prime is 21314355157. The reversal of 21314355151 is 15155341312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21314355151 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21314355157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10657177575 + 10657177576.

It is an arithmetic number, because the mean of its divisors is an integer number (10657177576).

Almost surely, 2^21314355151 is an apocalyptic number.

21314355151 is a deficient number, since it is larger than the sum of its proper divisors (1).

21314355151 is an equidigital number, since it uses as much as digits as its factorization.

21314355151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9000, while the sum is 31.

Adding to 21314355151 its reverse (15155341312), we get a palindrome (36469696463).

The spelling of 21314355151 in words is "twenty-one billion, three hundred fourteen million, three hundred fifty-five thousand, one hundred fifty-one".