23211132 has 24 divisors (see below), whose sum is σ = 61896576. Its totient is φ = 6631728.

The previous prime is 23211121. The next prime is 23211143. The reversal of 23211132 is 23111232.

It is an interprime number because it is at equal distance from previous prime (23211121) and next prime (23211143).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138078 + ... + 138245.

It is an arithmetic number, because the mean of its divisors is an integer number (2579024).

Almost surely, 2^23211132 is an apocalyptic number.

It is an amenable number.

23211132 is an abundant number, since it is smaller than the sum of its proper divisors (38685444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23211132 is a wasteful number, since it uses less digits than its factorization.

23211132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276337 (or 276335 counting only the distinct ones).

The product of its digits is 72, while the sum is 15.

The square root of 23211132 is about 4817.7932707828. The cubic root of 23211132 is about 285.2542391237.

Adding to 23211132 its reverse (23111232), we get a palindrome (46322364).

The spelling of 23211132 in words is "twenty-three million, two hundred eleven thousand, one hundred thirty-two".