23133221220232 has 8 divisors (see below), whose sum is σ = 43374789787950. Its totient is φ = 11566610610112.

The previous prime is 23133221220223. The next prime is 23133221220269. The reversal of 23133221220232 is 23202212233132.

It can be written as a sum of positive squares in only one way, i.e., 11681589251556 + 11451631968676 = 3417834^2 + 3384026^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×23133221220232² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23133221220232.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1445826326257 + ... + 1445826326272.

Almost surely, 2^{23133221220232} is an apocalyptic number.

It is an amenable number.

23133221220232 is a deficient number, since it is larger than the sum of its proper divisors (20241568567718).

23133221220232 is a wasteful number, since it uses less digits than its factorization.

23133221220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2891652652535 (or 2891652652531 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 23133221220232 its reverse (23202212233132), we get a palindrome (46335433453364).

The spelling of 23133221220232 in words is "twenty-three trillion, one hundred thirty-three billion, two hundred twenty-one million, two hundred twenty thousand, two hundred thirty-two".