3111021100013 has 4 divisors (see below), whose sum is σ = 3169719611388. Its totient is φ = 3052322588640.

The previous prime is 3111021100003. The next prime is 3111021100073. The reversal of 3111021100013 is 3100011201113.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2552028615049 + 558992484964 = 1597507^2 + 747658^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3111021100013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3111021100003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29349255608 + ... + 29349255713.

It is an arithmetic number, because the mean of its divisors is an integer number (792429902847).

Almost surely, 2^{3111021100013} is an apocalyptic number.

It is an amenable number.

3111021100013 is a deficient number, since it is larger than the sum of its proper divisors (58698511375).

3111021100013 is an equidigital number, since it uses as much as digits as its factorization.

3111021100013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58698511374.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 3111021100013 its reverse (3100011201113), we get a palindrome (6211032301126).

The spelling of 3111021100013 in words is "three trillion, one hundred eleven billion, twenty-one million, one hundred thousand, thirteen".