103213030123 has 4 divisors (see below), whose sum is σ = 117957748720. Its totient is φ = 88468311528.

The previous prime is 103213030051. The next prime is 103213030147. The reversal of 103213030123 is 321030312301.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103213030123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103213030123.

It is not an unprimeable number, because it can be changed into a prime (103213030163) 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, 7372359288 + ... + 7372359301.

It is an arithmetic number, because the mean of its divisors is an integer number (29489437180).

Almost surely, 2^103213030123 is an apocalyptic number.

103213030123 is a deficient number, since it is larger than the sum of its proper divisors (14744718597).

103213030123 is an equidigital number, since it uses as much as digits as its factorization.

103213030123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14744718596.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 103213030123 its reverse (321030312301), we get a palindrome (424243342424).

The spelling of 103213030123 in words is "one hundred three billion, two hundred thirteen million, thirty thousand, one hundred twenty-three".