123400322 has 4 divisors (see below), whose sum is σ = 185100486. Its totient is φ = 61700160.

The previous prime is 123400289. The next prime is 123400337. The reversal of 123400322 is 223004321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 123187801 + 212521 = 11099^2 + 461^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123400322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30850079 + ... + 30850082.

Almost surely, 2^123400322 is an apocalyptic number.

123400322 is a deficient number, since it is larger than the sum of its proper divisors (61700164).

123400322 is an equidigital number, since it uses as much as digits as its factorization.

123400322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61700163.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 123400322 is about 11108.5697549234. The cubic root of 123400322 is about 497.8579321961.

Adding to 123400322 its reverse (223004321), we get a palindrome (346404643).

The spelling of 123400322 in words is "one hundred twenty-three million, four hundred thousand, three hundred twenty-two".