123103115 has 16 divisors (see below), whose sum is σ = 156552480. Its totient is φ = 92762880.

The previous prime is 123103111. The next prime is 123103151. The reversal of 123103115 is 511301321.

It is not a de Polignac number, because 123103115 - 2² = 123103111 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123103093 and 123103102.

It is not an unprimeable number, because it can be changed into a prime (123103111) 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, 4409 + ... + 16298.

It is an arithmetic number, because the mean of its divisors is an integer number (9784530).

Almost surely, 2^123103115 is an apocalyptic number.

123103115 is a deficient number, since it is larger than the sum of its proper divisors (33449365).

123103115 is a wasteful number, since it uses less digits than its factorization.

123103115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20782.

The product of its (nonzero) digits is 90, while the sum is 17.

The square root of 123103115 is about 11095.1843157291. The cubic root of 123103115 is about 497.4579175367.

Adding to 123103115 its reverse (511301321), we get a palindrome (634404436).

The spelling of 123103115 in words is "one hundred twenty-three million, one hundred three thousand, one hundred fifteen".