123542704263 has 16 divisors (see below), whose sum is σ = 180800931456. Its totient is φ = 74415011040.

The previous prime is 123542704247. The next prime is 123542704303. The reversal of 123542704263 is 362407245321.

It is not a de Polignac number, because 123542704263 - 2⁴ = 123542704247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123542704763) 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, 11478420 + ... + 11489177.

It is an arithmetic number, because the mean of its divisors is an integer number (11300058216).

Almost surely, 2^123542704263 is an apocalyptic number.

123542704263 is a deficient number, since it is larger than the sum of its proper divisors (57258227193).

123542704263 is a wasteful number, since it uses less digits than its factorization.

123542704263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22967774.

The product of its (nonzero) digits is 241920, while the sum is 39.

Adding to 123542704263 its reverse (362407245321), we get a palindrome (485949949584).

The spelling of 123542704263 in words is "one hundred twenty-three billion, five hundred forty-two million, seven hundred four thousand, two hundred sixty-three".