21062023 has 2 divisors, whose sum is σ = 21062024. Its totient is φ = 21062022.

The previous prime is 21062017. The next prime is 21062057. The reversal of 21062023 is 32026012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21062023 - 2¹³ = 21053831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21061988 and 21062006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21062003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10531011 + 10531012.

It is an arithmetic number, because the mean of its divisors is an integer number (10531012).

Almost surely, 2^21062023 is an apocalyptic number.

21062023 is a deficient number, since it is larger than the sum of its proper divisors (1).

21062023 is an equidigital number, since it uses as much as digits as its factorization.

21062023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 21062023 is about 4589.3379696858. The cubic root of 21062023 is about 276.1637645698.

Adding to 21062023 its reverse (32026012), we get a palindrome (53088035).

The spelling of 21062023 in words is "twenty-one million, sixty-two thousand, twenty-three".