21030313346023 has 2 divisors, whose sum is σ = 21030313346024. Its totient is φ = 21030313346022.

The previous prime is 21030313345967. The next prime is 21030313346039. The reversal of 21030313346023 is 32064331303012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21030313346023 - 2²¹ = 21030311248871 is a prime.

It is a super-2 number, since 2×21030313346023² (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 (21030313346923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10515156673011 + 10515156673012.

It is an arithmetic number, because the mean of its divisors is an integer number (10515156673012).

Almost surely, 2^{21030313346023} is an apocalyptic number.

21030313346023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21030313346023 is an equidigital number, since it uses as much as digits as its factorization.

21030313346023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 21030313346023 its reverse (32064331303012), we get a palindrome (53094644649035).

The spelling of 21030313346023 in words is "twenty-one trillion, thirty billion, three hundred thirteen million, three hundred forty-six thousand, twenty-three".