123311426312 has 64 divisors (see below), whose sum is σ = 236159884800. Its totient is φ = 60346391040.

The previous prime is 123311426291. The next prime is 123311426317. The reversal of 123311426312 is 213624113321.

It is not an unprimeable number, because it can be changed into a prime (123311426317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131601908 + ... + 131602844.

It is an arithmetic number, because the mean of its divisors is an integer number (3689998200).

Almost surely, 2^123311426312 is an apocalyptic number.

It is an amenable number.

123311426312 is a deficient number, since it is larger than the sum of its proper divisors (112848458488).

123311426312 is a wasteful number, since it uses less digits than its factorization.

123311426312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2046 (or 2042 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

Adding to 123311426312 its reverse (213624113321), we get a palindrome (336935539633).

The spelling of 123311426312 in words is "one hundred twenty-three billion, three hundred eleven million, four hundred twenty-six thousand, three hundred twelve".