103111203123 has 16 divisors (see below), whose sum is σ = 152988464800. Its totient is φ = 68636795040.

The previous prime is 103111203109. The next prime is 103111203233. The reversal of 103111203123 is 321302111301.

It is not a de Polignac number, because 103111203123 - 2⁶ = 103111203059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103111203096 and 103111203105.

It is not an unprimeable number, because it can be changed into a prime (103111204123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2870908 + ... + 2906601.

It is an arithmetic number, because the mean of its divisors is an integer number (9561779050).

Almost surely, 2^103111203123 is an apocalyptic number.

103111203123 is a deficient number, since it is larger than the sum of its proper divisors (49877261677).

103111203123 is an equidigital number, since it uses as much as digits as its factorization.

103111203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5778179 (or 5778173 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 103111203123 its reverse (321302111301), we get a palindrome (424413314424).

The spelling of 103111203123 in words is "one hundred three billion, one hundred eleven million, two hundred three thousand, one hundred twenty-three".