103123321213 has 12 divisors (see below), whose sum is σ = 113384599804. Its totient is φ = 93720211200.

The previous prime is 103123321211. The next prime is 103123321243. The reversal of 103123321213 is 312123321301.

It can be written as a sum of positive squares in 2 ways, for example, as 63775441444 + 39347879769 = 252538^2 + 198363^2 .

It is not a de Polignac number, because 103123321213 - 2¹ = 103123321211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103123321211) 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, 279895 + ... + 533467.

Almost surely, 2^103123321213 is an apocalyptic number.

It is an amenable number.

103123321213 is a deficient number, since it is larger than the sum of its proper divisors (10261278591).

103123321213 is a wasteful number, since it uses less digits than its factorization.

103123321213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256956 (or 256945 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 103123321213 its reverse (312123321301), we get a palindrome (415246642514).

The spelling of 103123321213 in words is "one hundred three billion, one hundred twenty-three million, three hundred twenty-one thousand, two hundred thirteen".