2113303837 has 2 divisors, whose sum is σ = 2113303838. Its totient is φ = 2113303836.

The previous prime is 2113303811. The next prime is 2113303859. The reversal of 2113303837 is 7383033112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1696286596 + 417017241 = 41186^2 + 20421^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2113303837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2113303799 and 2113303808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2113303637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056651918 + 1056651919.

It is an arithmetic number, because the mean of its divisors is an integer number (1056651919).

Almost surely, 2^2113303837 is an apocalyptic number.

It is an amenable number.

2113303837 is a deficient number, since it is larger than the sum of its proper divisors (1).

2113303837 is an equidigital number, since it uses as much as digits as its factorization.

2113303837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 2113303837 is about 45970.6845391713. The cubic root of 2113303837 is about 1283.2776992730.

Adding to 2113303837 its reverse (7383033112), we get a palindrome (9496336949).

The spelling of 2113303837 in words is "two billion, one hundred thirteen million, three hundred three thousand, eight hundred thirty-seven".