30120003 has 24 divisors (see below), whose sum is σ = 45452160. Its totient is φ = 19198080.

The previous prime is 30119989. The next prime is 30120011. The reversal of 30120003 is 30002103.

It is a happy number.

It is not a de Polignac number, because 30120003 - 2⁹ = 30119491 is a prime.

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

It is not an unprimeable number, because it can be changed into a prime (30120023) 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, 24225 + ... + 25437.

It is an arithmetic number, because the mean of its divisors is an integer number (1893840).

Almost surely, 2^30120003 is an apocalyptic number.

30120003 is a deficient number, since it is larger than the sum of its proper divisors (15332157).

30120003 is a wasteful number, since it uses less digits than its factorization.

30120003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1339 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 30120003 is about 5488.1693669201. The cubic root of 30120003 is about 311.1370074202.

Adding to 30120003 its reverse (30002103), we get a palindrome (60122106).

The spelling of 30120003 in words is "thirty million, one hundred twenty thousand, three".