123341440312 has 32 divisors (see below), whose sum is σ = 231571529280. Its totient is φ = 61589099520.

The previous prime is 123341440303. The next prime is 123341440351. The reversal of 123341440312 is 213044143321.

It is a happy number.

It is a super-2 number, since 2×123341440312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 25785073 + ... + 25789855.

It is an arithmetic number, because the mean of its divisors is an integer number (7236610290).

Almost surely, 2^123341440312 is an apocalyptic number.

It is an amenable number.

123341440312 is a deficient number, since it is larger than the sum of its proper divisors (108230088968).

123341440312 is a wasteful number, since it uses less digits than its factorization.

123341440312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8383 (or 8379 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 123341440312 its reverse (213044143321), we get a palindrome (336385583633).

The spelling of 123341440312 in words is "one hundred twenty-three billion, three hundred forty-one million, four hundred forty thousand, three hundred twelve".