57203123 has 2 divisors, whose sum is σ = 57203124. Its totient is φ = 57203122.

The previous prime is 57203101. The next prime is 57203141. The reversal of 57203123 is 32130275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57203123 - 2⁸ = 57202867 is a prime.

It is not a weakly prime, because it can be changed into another prime (57203143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28601561 + 28601562.

It is an arithmetic number, because the mean of its divisors is an integer number (28601562).

Almost surely, 2^57203123 is an apocalyptic number.

57203123 is a deficient number, since it is larger than the sum of its proper divisors (1).

57203123 is an equidigital number, since it uses as much as digits as its factorization.

57203123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 57203123 is about 7563.2746214851. The cubic root of 57203123 is about 385.3067168477.

Adding to 57203123 its reverse (32130275), we get a palindrome (89333398).

The spelling of 57203123 in words is "fifty-seven million, two hundred three thousand, one hundred twenty-three".