2057721103 has 2 divisors, whose sum is σ = 2057721104. Its totient is φ = 2057721102.

The previous prime is 2057721047. The next prime is 2057721139. The reversal of 2057721103 is 3011277502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2057721103 - 2²¹ = 2055623951 is a prime.

It is a super-2 number, since 2×2057721103² = 8468432275463073218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2057721203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1028860551 + 1028860552.

It is an arithmetic number, because the mean of its divisors is an integer number (1028860552).

Almost surely, 2^2057721103 is an apocalyptic number.

2057721103 is a deficient number, since it is larger than the sum of its proper divisors (1).

2057721103 is an equidigital number, since it uses as much as digits as its factorization.

2057721103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 2057721103 is about 45362.1108746055. The cubic root of 2057721103 is about 1271.9269532618.

Adding to 2057721103 its reverse (3011277502), we get a palindrome (5068998605).

The spelling of 2057721103 in words is "two billion, fifty-seven million, seven hundred twenty-one thousand, one hundred three".