20130220412011 has 4 divisors (see below), whose sum is σ = 20133095754024. Its totient is φ = 20127345070000.

The previous prime is 20130220412009. The next prime is 20130220412039. The reversal of 20130220412011 is 11021402203102.

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 20130220412011 - 2¹ = 20130220412009 is a prime.

It is a super-2 number, since 2×20130220412011² (a number of 27 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 20130220412011.

It is not an unprimeable number, because it can be changed into a prime (20130220412611) 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 3 ways as a sum of consecutive naturals, for example, 1437660505 + ... + 1437674506.

It is an arithmetic number, because the mean of its divisors is an integer number (5033273938506).

Almost surely, 2^{20130220412011} is an apocalyptic number.

20130220412011 is a deficient number, since it is larger than the sum of its proper divisors (2875342013).

20130220412011 is an equidigital number, since it uses as much as digits as its factorization.

20130220412011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2875342012.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 20130220412011 its reverse (11021402203102), we get a palindrome (31151622615113).

The spelling of 20130220412011 in words is "twenty trillion, one hundred thirty billion, two hundred twenty million, four hundred twelve thousand, eleven".