123255435215310 has 128 divisors (see below), whose sum is σ = 298321765378560. Its totient is φ = 32590715480064.

The previous prime is 123255435215291. The next prime is 123255435215329. The reversal of 123255435215310 is 13512534552321.

It is an interprime number because it is at equal distance from previous prime (123255435215291) and next prime (123255435215329).

It is a super-3 number, since 3×123255435215310³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2694850762 + ... + 2694896498.

It is an arithmetic number, because the mean of its divisors is an integer number (2330638792020).

Almost surely, 2^{123255435215310} is an apocalyptic number.

123255435215310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123255435215310 is an abundant number, since it is smaller than the sum of its proper divisors (175066330163250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123255435215310 is a wasteful number, since it uses less digits than its factorization.

123255435215310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47570.

The product of its (nonzero) digits is 540000, while the sum is 42.

Adding to 123255435215310 its reverse (13512534552321), we get a palindrome (136767969767631).

The spelling of 123255435215310 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, four hundred thirty-five million, two hundred fifteen thousand, three hundred ten".