30203132243 has 4 divisors (see below), whose sum is σ = 30215756088. Its totient is φ = 30190508400.

The previous prime is 30203132237. The next prime is 30203132423. The reversal of 30203132243 is 34223130203.

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 30203132243 - 2¹⁰ = 30203131219 is a prime.

It is a super-2 number, since 2×30203132243² (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 (30203132233) 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, 6308333 + ... + 6313118.

It is an arithmetic number, because the mean of its divisors is an integer number (7553939022).

Almost surely, 2^30203132243 is an apocalyptic number.

30203132243 is a deficient number, since it is larger than the sum of its proper divisors (12623845).

30203132243 is a wasteful number, since it uses less digits than its factorization.

30203132243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12623844.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 30203132243 its reverse (34223130203), we get a palindrome (64426262446).

The spelling of 30203132243 in words is "thirty billion, two hundred three million, one hundred thirty-two thousand, two hundred forty-three".