133231233232 has 10 divisors (see below), whose sum is σ = 258135514418. Its totient is φ = 66615616608.

The previous prime is 133231233169. The next prime is 133231233329. The reversal of 133231233232 is 232332132331.

It can be written as a sum of positive squares in only one way, i.e., 132711575616 + 519657616 = 364296^2 + 22796^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 133231233232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4163476023 + ... + 4163476054.

Almost surely, 2^133231233232 is an apocalyptic number.

It is an amenable number.

133231233232 is a deficient number, since it is larger than the sum of its proper divisors (124904281186).

133231233232 is an equidigital number, since it uses as much as digits as its factorization.

133231233232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8326952085 (or 8326952079 counting only the distinct ones).

The product of its digits is 11664, while the sum is 28.

Adding to 133231233232 its reverse (232332132331), we get a palindrome (365563365563).

The spelling of 133231233232 in words is "one hundred thirty-three billion, two hundred thirty-one million, two hundred thirty-three thousand, two hundred thirty-two".