103312013123 has 4 divisors (see below), whose sum is σ = 112704014328. Its totient is φ = 93920011920.

The previous prime is 103312013117. The next prime is 103312013137. The reversal of 103312013123 is 321310213301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103312013123 - 2⁴ = 103312013107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103312013095 and 103312013104.

It is not an unprimeable number, because it can be changed into a prime (103312013153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4696000586 + ... + 4696000607.

It is an arithmetic number, because the mean of its divisors is an integer number (28176003582).

Almost surely, 2^103312013123 is an apocalyptic number.

103312013123 is a deficient number, since it is larger than the sum of its proper divisors (9392001205).

103312013123 is an equidigital number, since it uses as much as digits as its factorization.

103312013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9392001204.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 103312013123 its reverse (321310213301), we get a palindrome (424622226424).

The spelling of 103312013123 in words is "one hundred three billion, three hundred twelve million, thirteen thousand, one hundred twenty-three".