23121352 has 16 divisors (see below), whose sum is σ = 44847900. Its totient is φ = 11161920.

The previous prime is 23121349. The next prime is 23121359. The reversal of 23121352 is 25312132.

It can be written as a sum of positive squares in 2 ways, for example, as 23097636 + 23716 = 4806^2 + 154^2 .

It is not an unprimeable number, because it can be changed into a prime (23121359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49599 + ... + 50062.

Almost surely, 2^23121352 is an apocalyptic number.

It is an amenable number.

23121352 is a deficient number, since it is larger than the sum of its proper divisors (21726548).

23121352 is a wasteful number, since it uses less digits than its factorization.

23121352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99696 (or 99692 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 23121352 is about 4808.4666994792. The cubic root of 23121352 is about 284.8859788069.

Adding to 23121352 its reverse (25312132), we get a palindrome (48433484).

It can be divided in two parts, 2312 and 1352, that multiplied together give a square (3125824 = 1768²).

The spelling of 23121352 in words is "twenty-three million, one hundred twenty-one thousand, three hundred fifty-two".