11031312101 has 2 divisors, whose sum is σ = 11031312102. Its totient is φ = 11031312100.

The previous prime is 11031312079. The next prime is 11031312107. The reversal of 11031312101 is 10121313011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11013453025 + 17859076 = 104945^2 + 4226^2 .

It is an emirp because it is prime and its reverse (10121313011) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11031312101 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11031312107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515656050 + 5515656051.

It is an arithmetic number, because the mean of its divisors is an integer number (5515656051).

Almost surely, 2^11031312101 is an apocalyptic number.

It is an amenable number.

11031312101 is a deficient number, since it is larger than the sum of its proper divisors (1).

11031312101 is an equidigital number, since it uses as much as digits as its factorization.

11031312101 is an evil number, because the sum of its binary digits is even.

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

Adding to 11031312101 its reverse (10121313011), we get a palindrome (21152625112).

The spelling of 11031312101 in words is "eleven billion, thirty-one million, three hundred twelve thousand, one hundred one".