123420046 has 16 divisors (see below), whose sum is σ = 188218800. Its totient is φ = 60689088.

The previous prime is 123420043. The next prime is 123420053. The reversal of 123420046 is 640024321.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 123419999 and 123420026.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123420043) 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 7 ways as a sum of consecutive naturals, for example, 28266 + ... + 32338.

It is an arithmetic number, because the mean of its divisors is an integer number (11763675).

Almost surely, 2^123420046 is an apocalyptic number.

123420046 is a deficient number, since it is larger than the sum of its proper divisors (64798754).

123420046 is a wasteful number, since it uses less digits than its factorization.

123420046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 123420046 is about 11109.4575025066. The cubic root of 123420046 is about 497.8844562401.

Adding to 123420046 its reverse (640024321), we get a palindrome (763444367).

The spelling of 123420046 in words is "one hundred twenty-three million, four hundred twenty thousand, forty-six".