123301402515243 has 48 divisors (see below), whose sum is σ = 192911226034176. Its totient is φ = 75692524374720.

The previous prime is 123301402515241. The next prime is 123301402515271. The reversal of 123301402515243 is 342515204103321.

123301402515243 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 0 + 1 + 402 + 5 + 1 + 5 + 243 = 666.

It is not a de Polignac number, because 123301402515243 - 2¹ = 123301402515241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123301402515198 and 123301402515207.

It is not an unprimeable number, because it can be changed into a prime (123301402515241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 103288455 + ... + 104475392.

It is an arithmetic number, because the mean of its divisors is an integer number (4018983875712).

Almost surely, 2^{123301402515243} is an apocalyptic number.

123301402515243 is a deficient number, since it is larger than the sum of its proper divisors (69609823518933).

123301402515243 is a wasteful number, since it uses less digits than its factorization.

123301402515243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207763984 (or 207763981 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 123301402515243 its reverse (342515204103321), we get a palindrome (465816606618564).

The spelling of 123301402515243 in words is "one hundred twenty-three trillion, three hundred one billion, four hundred two million, five hundred fifteen thousand, two hundred forty-three".