123115343 has 32 divisors (see below), whose sum is σ = 149579136. Its totient is φ = 100159488.

The previous prime is 123115337. The next prime is 123115361. The reversal of 123115343 is 343511321.

It is not a de Polignac number, because 123115343 - 2⁴ = 123115327 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123115313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 269171 + ... + 269627.

It is an arithmetic number, because the mean of its divisors is an integer number (4674348).

Almost surely, 2^123115343 is an apocalyptic number.

123115343 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123115343 is a deficient number, since it is larger than the sum of its proper divisors (26463793).

123115343 is a wasteful number, since it uses less digits than its factorization.

123115343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 563.

The product of its digits is 1080, while the sum is 23.

The square root of 123115343 is about 11095.7353519269. The cubic root of 123115343 is about 497.4743880488.

Adding to 123115343 its reverse (343511321), we get a palindrome (466626664).

The spelling of 123115343 in words is "one hundred twenty-three million, one hundred fifteen thousand, three hundred forty-three".