23021132 has 12 divisors (see below), whose sum is σ = 40686576. Its totient is φ = 11396400.

The previous prime is 23021101. The next prime is 23021147. The reversal of 23021132 is 23112032.

It is a happy number.

It is a super-2 number, since 2×23021132² = 1059945037122848, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28088 + ... + 28895.

It is an arithmetic number, because the mean of its divisors is an integer number (3390548).

Almost surely, 2^23021132 is an apocalyptic number.

It is an amenable number.

23021132 is a deficient number, since it is larger than the sum of its proper divisors (17665444).

23021132 is a wasteful number, since it uses less digits than its factorization.

23021132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57088 (or 57086 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 23021132 is about 4798.0341807870. The cubic root of 23021132 is about 284.4737678419.

Adding to 23021132 its reverse (23112032), we get a palindrome (46133164).

The spelling of 23021132 in words is "twenty-three million, twenty-one thousand, one hundred thirty-two".