5657111123 has 2 divisors, whose sum is σ = 5657111124. Its totient is φ = 5657111122.

The previous prime is 5657111111. The next prime is 5657111137. The reversal of 5657111123 is 3211117565.

5657111123 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5657111123 - 2⁶ = 5657111059 is a prime.

It is a super-2 number, since 2×5657111123² = 64005812515940642258, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5657111123.

It is not a weakly prime, because it can be changed into another prime (5657111323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2828555561 + 2828555562.

It is an arithmetic number, because the mean of its divisors is an integer number (2828555562).

Almost surely, 2^5657111123 is an apocalyptic number.

5657111123 is a deficient number, since it is larger than the sum of its proper divisors (1).

5657111123 is an equidigital number, since it uses as much as digits as its factorization.

5657111123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 32.

The square root of 5657111123 is about 75213.7695039944. The cubic root of 5657111123 is about 1781.8244059007.

Adding to 5657111123 its reverse (3211117565), we get a palindrome (8868228688).

The spelling of 5657111123 in words is "five billion, six hundred fifty-seven million, one hundred eleven thousand, one hundred twenty-three".