120003155 has 8 divisors (see below), whose sum is σ = 144623232. Its totient is φ = 95589568.

The previous prime is 120003151. The next prime is 120003157. The reversal of 120003155 is 551300021.

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 120003155 - 2² = 120003151 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120003151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50339 + ... + 52668.

It is an arithmetic number, because the mean of its divisors is an integer number (18077904).

Almost surely, 2^120003155 is an apocalyptic number.

120003155 is a deficient number, since it is larger than the sum of its proper divisors (24620077).

120003155 is a wasteful number, since it uses less digits than its factorization.

120003155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103245.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 120003155 is about 10954.5951545459. The cubic root of 120003155 is about 493.2467375499.

Adding to 120003155 its reverse (551300021), we get a palindrome (671303176).

The spelling of 120003155 in words is "one hundred twenty million, three thousand, one hundred fifty-five".