31113030303101 has 2 divisors, whose sum is σ = 31113030303102. Its totient is φ = 31113030303100.

The previous prime is 31113030303077. The next prime is 31113030303119. The reversal of 31113030303101 is 10130303031113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25700083725625 + 5412946577476 = 5069525^2 + 2326574^2 .

It is an emirp because it is prime and its reverse (10130303031113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31113030303101 is a prime.

It is a super-2 number, since 2×31113030303101² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31113030303151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556515151550 + 15556515151551.

It is an arithmetic number, because the mean of its divisors is an integer number (15556515151551).

Almost surely, 2^{31113030303101} is an apocalyptic number.

It is an amenable number.

31113030303101 is a deficient number, since it is larger than the sum of its proper divisors (1).

31113030303101 is an equidigital number, since it uses as much as digits as its factorization.

31113030303101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 20.

Adding to 31113030303101 its reverse (10130303031113), we get a palindrome (41243333334214).

The spelling of 31113030303101 in words is "thirty-one trillion, one hundred thirteen billion, thirty million, three hundred three thousand, one hundred one".