57130123 has 4 divisors (see below), whose sum is σ = 57426328. Its totient is φ = 56833920.

The previous prime is 57130103. The next prime is 57130133. The reversal of 57130123 is 32103175.

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

It is a cyclic number.

It is not a de Polignac number, because 57130123 - 2¹⁷ = 56999051 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57130094 and 57130103.

It is not an unprimeable number, because it can be changed into a prime (57130103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 147813 + ... + 148198.

It is an arithmetic number, because the mean of its divisors is an integer number (14356582).

Almost surely, 2^57130123 is an apocalyptic number.

57130123 is a deficient number, since it is larger than the sum of its proper divisors (296205).

57130123 is a wasteful number, since it uses less digits than its factorization.

57130123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296204.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 57130123 is about 7558.4471288751. The cubic root of 57130123 is about 385.1427434939.

Adding to 57130123 its reverse (32103175), we get a palindrome (89233298).

The spelling of 57130123 in words is "fifty-seven million, one hundred thirty thousand, one hundred twenty-three".