123234431433 has 32 divisors (see below), whose sum is σ = 177688243200. Its totient is φ = 75706094016.

The previous prime is 123234431431. The next prime is 123234431459. The reversal of 123234431433 is 334134432321.

It is a happy number.

It is not a de Polignac number, because 123234431433 - 2¹ = 123234431431 is a prime.

It is a super-2 number, since 2×123234431433² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123234431394 and 123234431403.

It is not an unprimeable number, because it can be changed into a prime (123234431431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9532548 + ... + 9545466.

It is an arithmetic number, because the mean of its divisors is an integer number (5552757600).

Almost surely, 2^123234431433 is an apocalyptic number.

It is an amenable number.

123234431433 is a deficient number, since it is larger than the sum of its proper divisors (54453811767).

123234431433 is a wasteful number, since it uses less digits than its factorization.

123234431433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17501.

The product of its digits is 62208, while the sum is 33.

Adding to 123234431433 its reverse (334134432321), we get a palindrome (457368863754).

The spelling of 123234431433 in words is "one hundred twenty-three billion, two hundred thirty-four million, four hundred thirty-one thousand, four hundred thirty-three".