123042115 has 8 divisors (see below), whose sum is σ = 168743520. Its totient is φ = 84371712.

The previous prime is 123042109. The next prime is 123042121. The reversal of 123042115 is 511240321.

It is an interprime number because it is at equal distance from previous prime (123042109) and next prime (123042121).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123042115 - 2²¹ = 120944963 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123042092 and 123042101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1757710 + ... + 1757779.

It is an arithmetic number, because the mean of its divisors is an integer number (21092940).

Almost surely, 2^123042115 is an apocalyptic number.

123042115 is a deficient number, since it is larger than the sum of its proper divisors (45701405).

123042115 is an equidigital number, since it uses as much as digits as its factorization.

123042115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515501.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 123042115 is about 11092.4350347433. The cubic root of 123042115 is about 497.3757372536.

Adding to 123042115 its reverse (511240321), we get a palindrome (634282436).

The spelling of 123042115 in words is "one hundred twenty-three million, forty-two thousand, one hundred fifteen".