123431243002 has 8 divisors (see below), whose sum is σ = 189662641812. Its totient is φ = 60210362400.

The previous prime is 123431242997. The next prime is 123431243003. The reversal of 123431243002 is 200342134321.

It can be written as a sum of positive squares in 2 ways, for example, as 109547098441 + 13884144561 = 330979^2 + 117831^2 .

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

It is not an unprimeable number, because it can be changed into a prime (123431243003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 752629449 + ... + 752629612.

Almost surely, 2^123431243002 is an apocalyptic number.

123431243002 is a deficient number, since it is larger than the sum of its proper divisors (66231398810).

123431243002 is a wasteful number, since it uses less digits than its factorization.

123431243002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505259104.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 123431243002 its reverse (200342134321), we get a palindrome (323773377323).

The spelling of 123431243002 in words is "one hundred twenty-three billion, four hundred thirty-one million, two hundred forty-three thousand, two".