103112123012 has 12 divisors (see below), whose sum is σ = 181015448460. Its totient is φ = 51393423456.

The previous prime is 103112123011. The next prime is 103112123047. The reversal of 103112123012 is 210321211301.

It can be written as a sum of positive squares in 2 ways, for example, as 39993600256 + 63118522756 = 199984^2 + 251234^2 .

It is not an unprimeable number, because it can be changed into a prime (103112123011) 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 3 ways as a sum of consecutive naturals, for example, 40658087 + ... + 40660622.

It is an arithmetic number, because the mean of its divisors is an integer number (15084620705).

Almost surely, 2^103112123012 is an apocalyptic number.

It is an amenable number.

103112123012 is a deficient number, since it is larger than the sum of its proper divisors (77903325448).

103112123012 is a wasteful number, since it uses less digits than its factorization.

103112123012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81319030 (or 81319028 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103112123012 its reverse (210321211301), we get a palindrome (313433334313).

The spelling of 103112123012 in words is "one hundred three billion, one hundred twelve million, one hundred twenty-three thousand, twelve".