2021903713 has 2 divisors, whose sum is σ = 2021903714. Its totient is φ = 2021903712.

The previous prime is 2021903701. The next prime is 2021903773. The reversal of 2021903713 is 3173091202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1619821009 + 402082704 = 40247^2 + 20052^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021903713 - 2²⁵ = 1988349281 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021903773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010951856 + 1010951857.

It is an arithmetic number, because the mean of its divisors is an integer number (1010951857).

Almost surely, 2^2021903713 is an apocalyptic number.

It is an amenable number.

2021903713 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021903713 is an equidigital number, since it uses as much as digits as its factorization.

2021903713 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 2021903713 is about 44965.5836501652. The cubic root of 2021903713 is about 1264.5038518403.

Adding to 2021903713 its reverse (3173091202), we get a palindrome (5194994915).

The spelling of 2021903713 in words is "two billion, twenty-one million, nine hundred three thousand, seven hundred thirteen".