30203112011 has 4 divisors (see below), whose sum is σ = 30204348792. Its totient is φ = 30201875232.

The previous prime is 30203112007. The next prime is 30203112019. The reversal of 30203112011 is 11021130203.

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 30203112011 - 2² = 30203112007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30203112019) 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, 581006 + ... + 630851.

It is an arithmetic number, because the mean of its divisors is an integer number (7551087198).

Almost surely, 2^30203112011 is an apocalyptic number.

30203112011 is a deficient number, since it is larger than the sum of its proper divisors (1236781).

30203112011 is a wasteful number, since it uses less digits than its factorization.

30203112011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236780.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30203112011 its reverse (11021130203), we get a palindrome (41224242214).

The spelling of 30203112011 in words is "thirty billion, two hundred three million, one hundred twelve thousand, eleven".