123132043431 has 64 divisors (see below), whose sum is σ = 191371018240. Its totient is φ = 78148683360.

The previous prime is 123132043387. The next prime is 123132043439. The reversal of 123132043431 is 134340231321.

It is a happy number.

123132043431 is a `hidden beast` number, since 1 + 2 + 313 + 2 + 0 + 4 + 343 + 1 = 666.

It is not a de Polignac number, because 123132043431 - 2⁷ = 123132043303 is a prime.

It is a super-2 number, since 2×123132043431² (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 = 123132043395 and 123132043404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123132043439) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79799646 + ... + 79801188.

It is an arithmetic number, because the mean of its divisors is an integer number (2990172160).

Almost surely, 2^123132043431 is an apocalyptic number.

123132043431 is a deficient number, since it is larger than the sum of its proper divisors (68238974809).

123132043431 is a wasteful number, since it uses less digits than its factorization.

123132043431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3073 (or 3067 counting only the distinct ones).

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

Adding to 123132043431 its reverse (134340231321), we get a palindrome (257472274752).

The spelling of 123132043431 in words is "one hundred twenty-three billion, one hundred thirty-two million, forty-three thousand, four hundred thirty-one".