123400233240535 has 32 divisors (see below), whose sum is σ = 149361650134272. Its totient is φ = 97868840509440.

The previous prime is 123400233240517. The next prime is 123400233240547. The reversal of 123400233240535 is 535042332004321.

It is not a de Polignac number, because 123400233240535 - 2¹¹ = 123400233238487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123400233240494 and 123400233240503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5966830395 + ... + 5966851075.

It is an arithmetic number, because the mean of its divisors is an integer number (4667551566696).

Almost surely, 2^{123400233240535} is an apocalyptic number.

123400233240535 is a deficient number, since it is larger than the sum of its proper divisors (25961416893737).

123400233240535 is a wasteful number, since it uses less digits than its factorization.

123400233240535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37723.

The product of its (nonzero) digits is 259200, while the sum is 37.

Adding to 123400233240535 its reverse (535042332004321), we get a palindrome (658442565244856).

The spelling of 123400233240535 in words is "one hundred twenty-three trillion, four hundred billion, two hundred thirty-three million, two hundred forty thousand, five hundred thirty-five".