120102003 has 12 divisors (see below), whose sum is σ = 198263728. Its totient is φ = 68629680.

The previous prime is 120102001. The next prime is 120102013. The reversal of 120102003 is 300201021.

It is a happy number.

It is not a de Polignac number, because 120102003 - 2¹ = 120102001 is a prime.

It is a super-2 number, since 2×120102003² = 28848982249224018, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120102001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 953128 + ... + 953253.

Almost surely, 2^120102003 is an apocalyptic number.

120102003 is a deficient number, since it is larger than the sum of its proper divisors (78161725).

120102003 is a wasteful number, since it uses less digits than its factorization.

120102003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1906394 (or 1906391 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 120102003 is about 10959.1059398110. The cubic root of 120102003 is about 493.3821314139.

Adding to 120102003 its reverse (300201021), we get a palindrome (420303024).

The spelling of 120102003 in words is "one hundred twenty million, one hundred two thousand, three".