12020030011 has 24 divisors (see below), whose sum is σ = 13528991952. Its totient is φ = 10668134400.

The previous prime is 12020029961. The next prime is 12020030017. The reversal of 12020030011 is 11003002021.

It is not a de Polignac number, because 12020030011 - 2¹¹ = 12020027963 is a prime.

It is a super-2 number, since 2×12020030011² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12020030011.

It is not an unprimeable number, because it can be changed into a prime (12020030017) 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, 909531 + ... + 922651.

It is an arithmetic number, because the mean of its divisors is an integer number (563707998).

Almost surely, 2^12020030011 is an apocalyptic number.

12020030011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12020030011 is a deficient number, since it is larger than the sum of its proper divisors (1508961941).

12020030011 is a wasteful number, since it uses less digits than its factorization.

12020030011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13323 (or 13312 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 12020030011 its reverse (11003002021), we get a palindrome (23023032032).

The spelling of 12020030011 in words is "twelve billion, twenty million, thirty thousand, eleven".