23232221312 has 16 divisors (see below), whose sum is σ = 46282941150. Its totient is φ = 11616110592.

The previous prime is 23232221251. The next prime is 23232221321. The reversal of 23232221312 is 21312223232.

It can be written as a sum of positive squares in only one way, i.e., 18567877696 + 4664343616 = 136264^2 + 68296^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a super-2 number, since 2×23232221312² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90750737 + ... + 90750992.

Almost surely, 2^23232221312 is an apocalyptic number.

It is an amenable number.

23232221312 is a deficient number, since it is larger than the sum of its proper divisors (23050719838).

23232221312 is an equidigital number, since it uses as much as digits as its factorization.

23232221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181501743 (or 181501731 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

Adding to 23232221312 its reverse (21312223232), we get a palindrome (44544444544).

The spelling of 23232221312 in words is "twenty-three billion, two hundred thirty-two million, two hundred twenty-one thousand, three hundred twelve".