2111357 has 2 divisors, whose sum is σ = 2111358. Its totient is φ = 2111356.

The previous prime is 2111353. The next prime is 2111359. The reversal of 2111357 is 7531112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1674436 + 436921 = 1294^2 + 661^2 .

It is a cyclic number.

It is not a de Polignac number, because 2111357 - 2² = 2111353 is a prime.

Together with 2111359, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055678 + 1055679.

It is an arithmetic number, because the mean of its divisors is an integer number (1055679).

2^2111357 is an apocalyptic number.

It is an amenable number.

2111357 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111357 is an equidigital number, since it uses as much as digits as its factorization.

2111357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 210, while the sum is 20.

The square root of 2111357 is about 1453.0509282197. The cubic root of 2111357 is about 128.2883513948.

Adding to 2111357 its reverse (7531112), we get a palindrome (9642469).

The spelling of 2111357 in words is "two million, one hundred eleven thousand, three hundred fifty-seven".