12020203011 has 16 divisors (see below), whose sum is σ = 16743756960. Its totient is φ = 7660531200.

The previous prime is 12020203007. The next prime is 12020203033. The reversal of 12020203011 is 11030202021.

It is not a de Polignac number, because 12020203011 - 2² = 12020203007 is a prime.

It is a super-2 number, since 2×12020203011² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12020203711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 675190 + ... + 692763.

It is an arithmetic number, because the mean of its divisors is an integer number (1046484810).

Almost surely, 2^12020203011 is an apocalyptic number.

12020203011 is a deficient number, since it is larger than the sum of its proper divisors (4723553949).

12020203011 is a wasteful number, since it uses less digits than its factorization.

12020203011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368086.

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 12020203011 its reverse (11030202021), we get a palindrome (23050405032).

The spelling of 12020203011 in words is "twelve billion, twenty million, two hundred three thousand, eleven".