12011020030 has 32 divisors (see below), whose sum is σ = 22903119360. Its totient is φ = 4519518720.

The previous prime is 12011020019. The next prime is 12011020037. The reversal of 12011020030 is 3002011021.

It is a super-2 number, since 2×12011020030² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 12011019989 and 12011020016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011020037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342136 + ... + 375604.

It is an arithmetic number, because the mean of its divisors is an integer number (715722480).

Almost surely, 2^12011020030 is an apocalyptic number.

12011020030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011020030 is a deficient number, since it is larger than the sum of its proper divisors (10892099330).

12011020030 is a wasteful number, since it uses less digits than its factorization.

12011020030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35604.

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

Adding to 12011020030 its reverse (3002011021), we get a palindrome (15013031051).

Subtracting from 12011020030 its reverse (3002011021), we obtain a palindrome (9009009009).

The spelling of 12011020030 in words is "twelve billion, eleven million, twenty thousand, thirty".