2031113101 has 2 divisors, whose sum is σ = 2031113102. Its totient is φ = 2031113100.

The previous prime is 2031113099. The next prime is 2031113111. The reversal of 2031113101 is 1013111302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1829615076 + 201498025 = 42774^2 + 14195^2 .

It is a cyclic number.

It is not a de Polignac number, because 2031113101 - 2¹ = 2031113099 is a prime.

Together with 2031113099, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2031113111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1015556550 + 1015556551.

It is an arithmetic number, because the mean of its divisors is an integer number (1015556551).

Almost surely, 2^2031113101 is an apocalyptic number.

It is an amenable number.

2031113101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2031113101 is an equidigital number, since it uses as much as digits as its factorization.

2031113101 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 13.

The square root of 2031113101 is about 45067.8721596660. The cubic root of 2031113101 is about 1266.4208027495.

Adding to 2031113101 its reverse (1013111302), we get a palindrome (3044224403).

The spelling of 2031113101 in words is "two billion, thirty-one million, one hundred thirteen thousand, one hundred one".