120102015 has 16 divisors (see below), whose sum is σ = 209632896. Its totient is φ = 58231200.

The previous prime is 120102013. The next prime is 120102077. The reversal of 120102015 is 510201021.

It is not a de Polignac number, because 120102015 - 2¹ = 120102013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120102013) 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, 363781 + ... + 364110.

It is an arithmetic number, because the mean of its divisors is an integer number (13102056).

Almost surely, 2^120102015 is an apocalyptic number.

120102015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

120102015 is a deficient number, since it is larger than the sum of its proper divisors (89530881).

120102015 is a wasteful number, since it uses less digits than its factorization.

120102015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727910.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 120102015 is about 10959.1064873009. The cubic root of 120102015 is about 493.3821478461.

Adding to 120102015 its reverse (510201021), we get a palindrome (630303036).

The spelling of 120102015 in words is "one hundred twenty million, one hundred two thousand, fifteen".