123232213133 has 4 divisors (see below), whose sum is σ = 123625926588. Its totient is φ = 122838499680.

The previous prime is 123232213123. The next prime is 123232213147. The reversal of 123232213133 is 331312232321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 226291849 + 123005921284 = 15043^2 + 350722^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123232213133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123232213123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 196856258 + ... + 196856883.

It is an arithmetic number, because the mean of its divisors is an integer number (30906481647).

Almost surely, 2^123232213133 is an apocalyptic number.

It is an amenable number.

123232213133 is a deficient number, since it is larger than the sum of its proper divisors (393713455).

123232213133 is an equidigital number, since it uses as much as digits as its factorization.

123232213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 393713454.

The product of its digits is 3888, while the sum is 26.

Adding to 123232213133 its reverse (331312232321), we get a palindrome (454544445454).

The spelling of 123232213133 in words is "one hundred twenty-three billion, two hundred thirty-two million, two hundred thirteen thousand, one hundred thirty-three".