30023120203 has 4 divisors (see below), whose sum is σ = 31058400240. Its totient is φ = 28987840168.

The previous prime is 30023120129. The next prime is 30023120233. The reversal of 30023120203 is 30202132003.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 30023120203 - 2⁹ = 30023119691 is a prime.

It is a super-2 number, since 2×30023120203² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30023120233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517639975 + ... + 517640032.

It is an arithmetic number, because the mean of its divisors is an integer number (7764600060).

Almost surely, 2^30023120203 is an apocalyptic number.

30023120203 is a deficient number, since it is larger than the sum of its proper divisors (1035280037).

30023120203 is a wasteful number, since it uses less digits than its factorization.

30023120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1035280036.

The product of its (nonzero) digits is 216, while the sum is 16.

Adding to 30023120203 its reverse (30202132003), we get a palindrome (60225252206).

The spelling of 30023120203 in words is "thirty billion, twenty-three million, one hundred twenty thousand, two hundred three".