30142203 has 24 divisors (see below), whose sum is σ = 50350608. Its totient is φ = 15898176.

The previous prime is 30142201. The next prime is 30142237. The reversal of 30142203 is 30224103.

It is not a de Polignac number, because 30142203 - 2¹ = 30142201 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30142201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5976 + ... + 9797.

It is an arithmetic number, because the mean of its divisors is an integer number (2097942).

Almost surely, 2^30142203 is an apocalyptic number.

30142203 is a deficient number, since it is larger than the sum of its proper divisors (20208405).

30142203 is a wasteful number, since it uses less digits than its factorization.

30142203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15803 (or 15796 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 30142203 is about 5490.1915267138. The cubic root of 30142203 is about 311.2134300029.

Adding to 30142203 its reverse (30224103), we get a palindrome (60366306).

The spelling of 30142203 in words is "thirty million, one hundred forty-two thousand, two hundred three".