123536343 has 16 divisors (see below), whose sum is σ = 188441856. Its totient is φ = 70518720.

The previous prime is 123536339. The next prime is 123536393. The reversal of 123536343 is 343635321.

It is not a de Polignac number, because 123536343 - 2² = 123536339 is a prime.

It is a super-2 number, since 2×123536343² = 30522456083627298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123536343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123536323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22588 + ... + 27518.

It is an arithmetic number, because the mean of its divisors is an integer number (11777616).

Almost surely, 2^123536343 is an apocalyptic number.

123536343 is a deficient number, since it is larger than the sum of its proper divisors (64905513).

123536343 is a wasteful number, since it uses less digits than its factorization.

123536343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6134.

The product of its digits is 19440, while the sum is 30.

The square root of 123536343 is about 11114.6904140421. The cubic root of 123536343 is about 498.0407903557.

The spelling of 123536343 in words is "one hundred twenty-three million, five hundred thirty-six thousand, three hundred forty-three".