21013034034023 has 2 divisors, whose sum is σ = 21013034034024. Its totient is φ = 21013034034022.

The previous prime is 21013034033917. The next prime is 21013034034029. The reversal of 21013034034023 is 32043043031012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21013034034023 - 2²⁴ = 21013017256807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21013034033983 and 21013034034001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21013034034029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10506517017011 + 10506517017012.

It is an arithmetic number, because the mean of its divisors is an integer number (10506517017012).

Almost surely, 2^{21013034034023} is an apocalyptic number.

21013034034023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21013034034023 is an equidigital number, since it uses as much as digits as its factorization.

21013034034023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21013034034023 its reverse (32043043031012), we get a palindrome (53056077065035).

The spelling of 21013034034023 in words is "twenty-one trillion, thirteen billion, thirty-four million, thirty-four thousand, twenty-three".