123122115 has 24 divisors (see below), whose sum is σ = 218378160. Its totient is φ = 64137024.

The previous prime is 123122099. The next prime is 123122119. The reversal of 123122115 is 511221321.

It is not a de Polignac number, because 123122115 - 2⁴ = 123122099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123122119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29880 + ... + 33749.

It is an arithmetic number, because the mean of its divisors is an integer number (9099090).

Almost surely, 2^123122115 is an apocalyptic number.

123122115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123122115 is a deficient number, since it is larger than the sum of its proper divisors (95256045).

123122115 is a wasteful number, since it uses less digits than its factorization.

123122115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63683 (or 63680 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 123122115 is about 11096.0405100198. The cubic root of 123122115 is about 497.4835091291.

Adding to 123122115 its reverse (511221321), we get a palindrome (634343436).

The spelling of 123122115 in words is "one hundred twenty-three million, one hundred twenty-two thousand, one hundred fifteen".