123311146 has 24 divisors (see below), whose sum is σ = 216280800. Its totient is φ = 52573752.

The previous prime is 123311141. The next prime is 123311147. The reversal of 123311146 is 641113321.

It is not an unprimeable number, because it can be changed into a prime (123311141) by changing a digit.

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 in 11 ways as a sum of consecutive naturals, for example, 16341 + ... + 22663.

It is an arithmetic number, because the mean of its divisors is an integer number (9011700).

Almost surely, 2^123311146 is an apocalyptic number.

123311146 is a deficient number, since it is larger than the sum of its proper divisors (92969654).

123311146 is a wasteful number, since it uses less digits than its factorization.

123311146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6538 (or 6531 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 123311146 is about 11104.5551914518. Note that the first 3 decimals coincide. The cubic root of 123311146 is about 497.7379765992.

Adding to 123311146 its reverse (641113321), we get a palindrome (764424467).

The spelling of 123311146 in words is "one hundred twenty-three million, three hundred eleven thousand, one hundred forty-six".