123013203023535 has 32 divisors (see below), whose sum is σ = 214761176692992. Its totient is φ = 59629647790080.

The previous prime is 123013203023533. The next prime is 123013203023537. The reversal of 123013203023535 is 535320302310321.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (123013203023533) and next prime (123013203023537).

It is not a de Polignac number, because 123013203023535 - 2¹ = 123013203023533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 123013203023496 and 123013203023505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123013203023533) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81230674 + ... + 82731183.

It is an arithmetic number, because the mean of its divisors is an integer number (6711286771656).

Almost surely, 2^{123013203023535} is an apocalyptic number.

123013203023535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123013203023535 is a deficient number, since it is larger than the sum of its proper divisors (91747973669457).

123013203023535 is a wasteful number, since it uses less digits than its factorization.

123013203023535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163966423.

The product of its (nonzero) digits is 48600, while the sum is 33.

Adding to 123013203023535 its reverse (535320302310321), we get a palindrome (658333505333856).

The spelling of 123013203023535 in words is "one hundred twenty-three trillion, thirteen billion, two hundred three million, twenty-three thousand, five hundred thirty-five".