123345322431 has 8 divisors (see below), whose sum is σ = 168905306544. Its totient is φ = 80007776640.

The previous prime is 123345322427. The next prime is 123345322433. The reversal of 123345322431 is 134223543321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123345322431 - 2² = 123345322427 is a prime.

It is a super-2 number, since 2×123345322431² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 123345322392 and 123345322401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123345322433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555609450 + ... + 555609671.

It is an arithmetic number, because the mean of its divisors is an integer number (21113163318).

Almost surely, 2^123345322431 is an apocalyptic number.

123345322431 is a deficient number, since it is larger than the sum of its proper divisors (45559984113).

123345322431 is a wasteful number, since it uses less digits than its factorization.

123345322431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111219161.

The product of its digits is 51840, while the sum is 33.

Adding to 123345322431 its reverse (134223543321), we get a palindrome (257568865752).

The spelling of 123345322431 in words is "one hundred twenty-three billion, three hundred forty-five million, three hundred twenty-two thousand, four hundred thirty-one".