123443757346 has 48 divisors (see below), whose sum is σ = 233338727160. Its totient is φ = 48834807840.

The previous prime is 123443757337. The next prime is 123443757413. The reversal of 123443757346 is 643757344321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 232227121 + 123211530225 = 15239^2 + 351015^2 .

It is a super-2 number, since 2×123443757346² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a self number, because there is not a number n which added to its sum of digits gives 123443757346.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 71365 + ... + 501976.

Almost surely, 2^123443757346 is an apocalyptic number.

123443757346 is a deficient number, since it is larger than the sum of its proper divisors (109894969814).

123443757346 is an equidigital number, since it uses as much as digits as its factorization.

123443757346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 573396 (or 573363 counting only the distinct ones).

The product of its digits is 5080320, while the sum is 49.

The spelling of 123443757346 in words is "one hundred twenty-three billion, four hundred forty-three million, seven hundred fifty-seven thousand, three hundred forty-six".