123313305511340 has 72 divisors (see below), whose sum is σ = 301739690095200. Its totient is φ = 42208265019648.

The previous prime is 123313305511321. The next prime is 123313305511397. The reversal of 123313305511340 is 43115503313321.

It is a super-2 number, since 2×123313305511340² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 123313305511340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 104446289 + ... + 105620328.

It is an arithmetic number, because the mean of its divisors is an integer number (4190829029100).

Almost surely, 2^{123313305511340} is an apocalyptic number.

123313305511340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123313305511340 is an abundant number, since it is smaller than the sum of its proper divisors (178426384583860).

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

123313305511340 is a wasteful number, since it uses less digits than its factorization.

123313305511340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210067239 (or 210067230 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 123313305511340 its reverse (43115503313321), we get a palindrome (166428808824661).

The spelling of 123313305511340 in words is "one hundred twenty-three trillion, three hundred thirteen billion, three hundred five million, five hundred eleven thousand, three hundred forty".