21303133302151 has 2 divisors, whose sum is σ = 21303133302152. Its totient is φ = 21303133302150.

The previous prime is 21303133302119. The next prime is 21303133302163. The reversal of 21303133302151 is 15120333130312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21303133302151 - 2⁵ = 21303133302119 is a prime.

It is a super-2 number, since 2×21303133302151² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21303133305151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10651566651075 + 10651566651076.

It is an arithmetic number, because the mean of its divisors is an integer number (10651566651076).

Almost surely, 2^{21303133302151} is an apocalyptic number.

21303133302151 is a deficient number, since it is larger than the sum of its proper divisors (1).

21303133302151 is an equidigital number, since it uses as much as digits as its factorization.

21303133302151 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4860, while the sum is 28.

Adding to 21303133302151 its reverse (15120333130312), we get a palindrome (36423466432463).

The spelling of 21303133302151 in words is "twenty-one trillion, three hundred three billion, one hundred thirty-three million, three hundred two thousand, one hundred fifty-one".