23321653 has 2 divisors, whose sum is σ = 23321654. Its totient is φ = 23321652.

The previous prime is 23321621. The next prime is 23321657. The reversal of 23321653 is 35612332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14122564 + 9199089 = 3758^2 + 3033^2 .

It is a cyclic number.

It is not a de Polignac number, because 23321653 - 2⁵ = 23321621 is a prime.

It is a super-3 number, since 3×23321653³ (a number of 23 digits) contains 333 as substring.

It is equal to p_1467232 and since 23321653 and 1467232 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23321657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660826 + 11660827.

It is an arithmetic number, because the mean of its divisors is an integer number (11660827).

Almost surely, 2^23321653 is an apocalyptic number.

It is an amenable number.

23321653 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321653 is an equidigital number, since it uses as much as digits as its factorization.

23321653 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 25.

The square root of 23321653 is about 4829.2497346896. The cubic root of 23321653 is about 285.7062733348.

Adding to 23321653 its reverse (35612332), we get a palindrome (58933985).

The spelling of 23321653 in words is "twenty-three million, three hundred twenty-one thousand, six hundred fifty-three".