123442310133 has 6 divisors (see below), whose sum is σ = 178305559094. Its totient is φ = 82294873416.

The previous prime is 123442310119. The next prime is 123442310203. The reversal of 123442310133 is 331013244321.

It is a happy number.

123442310133 is a `hidden beast` number, since 1 + 2 + 344 + 2 + 310 + 1 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 118650624849 + 4791685284 = 344457^2 + 69222^2 .

It is not a de Polignac number, because 123442310133 - 2⁹ = 123442309621 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123442310097 and 123442310106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123442310833) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6857906110 + ... + 6857906127.

Almost surely, 2^123442310133 is an apocalyptic number.

It is an amenable number.

123442310133 is a deficient number, since it is larger than the sum of its proper divisors (54863248961).

123442310133 is a wasteful number, since it uses less digits than its factorization.

123442310133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13715812243 (or 13715812240 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 123442310133 its reverse (331013244321), we get a palindrome (454455554454).

The spelling of 123442310133 in words is "one hundred twenty-three billion, four hundred forty-two million, three hundred ten thousand, one hundred thirty-three".