123041323431 has 16 divisors (see below), whose sum is σ = 196305245920. Its totient is φ = 75717737280.

The previous prime is 123041323417. The next prime is 123041323463. The reversal of 123041323431 is 134323140321.

It is a happy number.

123041323431 is a `hidden beast` number, since 1 + 2 + 304 + 1 + 323 + 4 + 31 = 666.

It is not a de Polignac number, because 123041323431 - 2¹¹ = 123041321383 is a prime.

It is a super-2 number, since 2×123041323431² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123041323395 and 123041323404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123041324431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 175272190 + ... + 175272891.

It is an arithmetic number, because the mean of its divisors is an integer number (12269077870).

Almost surely, 2^123041323431 is an apocalyptic number.

123041323431 is a deficient number, since it is larger than the sum of its proper divisors (73263922489).

123041323431 is a wasteful number, since it uses less digits than its factorization.

123041323431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350545103 (or 350545097 counting only the distinct ones).

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

Adding to 123041323431 its reverse (134323140321), we get a palindrome (257364463752).

The spelling of 123041323431 in words is "one hundred twenty-three billion, forty-one million, three hundred twenty-three thousand, four hundred thirty-one".