57103311 has 4 divisors (see below), whose sum is σ = 76137752. Its totient is φ = 38068872.

The previous prime is 57103243. The next prime is 57103331. The reversal of 57103311 is 11330175.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57103311 - 2¹¹ = 57101263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57103331) 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 in 3 ways as a sum of consecutive naturals, for example, 9517216 + ... + 9517221.

It is an arithmetic number, because the mean of its divisors is an integer number (19034438).

Almost surely, 2^57103311 is an apocalyptic number.

57103311 is a deficient number, since it is larger than the sum of its proper divisors (19034441).

57103311 is a wasteful number, since it uses less digits than its factorization.

57103311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19034440.

The product of its (nonzero) digits is 315, while the sum is 21.

The square root of 57103311 is about 7556.6732759859. The cubic root of 57103311 is about 385.0824830302.

Adding to 57103311 its reverse (11330175), we get a palindrome (68433486).

The spelling of 57103311 in words is "fifty-seven million, one hundred three thousand, three hundred eleven".