23021071 has 4 divisors (see below), whose sum is σ = 23032944. Its totient is φ = 23009200.

The previous prime is 23021059. The next prime is 23021083. The reversal of 23021071 is 17012032.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (23021059) and next prime (23021083).

It is a cyclic number.

It is not a de Polignac number, because 23021071 - 2¹³ = 23012879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2275 + ... + 7156.

It is an arithmetic number, because the mean of its divisors is an integer number (5758236).

Almost surely, 2^23021071 is an apocalyptic number.

23021071 is a deficient number, since it is larger than the sum of its proper divisors (11873).

23021071 is an equidigital number, since it uses as much as digits as its factorization.

23021071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11872.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 23021071 is about 4798.0278240127. The cubic root of 23021071 is about 284.4735165813.

The spelling of 23021071 in words is "twenty-three million, twenty-one thousand, seventy-one".