3113111201020 has 24 divisors (see below), whose sum is σ = 6566333238864. Its totient is φ = 1239758820096.

The previous prime is 3113111200963. The next prime is 3113111201023. The reversal of 3113111201020 is 201021113113.

It is a happy number.

It is a super-2 number, since 2×3113111201020² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3113111200985 and 3113111201003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3113111201023) 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 7 ways as a sum of consecutive naturals, for example, 342849117 + ... + 342858196.

It is an arithmetic number, because the mean of its divisors is an integer number (273597218286).

Almost surely, 2^{3113111201020} is an apocalyptic number.

It is an amenable number.

3113111201020 is an abundant number, since it is smaller than the sum of its proper divisors (3453222037844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3113111201020 is a wasteful number, since it uses less digits than its factorization.

3113111201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685707549 (or 685707547 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 3113111201020 its reverse (201021113113), we get a palindrome (3314132314133).

The spelling of 3113111201020 in words is "three trillion, one hundred thirteen billion, one hundred eleven million, two hundred one thousand, twenty".