253342123 has 2 divisors, whose sum is σ = 253342124. Its totient is φ = 253342122.

The previous prime is 253342121. The next prime is 253342139. The reversal of 253342123 is 321243352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 253342123 - 2¹ = 253342121 is a prime.

It is a super-2 number, since 2×253342123² = 128364462572294258, which contains 22 as substring.

Together with 253342121, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (253342121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126671061 + 126671062.

It is an arithmetic number, because the mean of its divisors is an integer number (126671062).

Almost surely, 2^253342123 is an apocalyptic number.

253342123 is a deficient number, since it is larger than the sum of its proper divisors (1).

253342123 is an equidigital number, since it uses as much as digits as its factorization.

253342123 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 25.

The square root of 253342123 is about 15916.7246316571. The cubic root of 253342123 is about 632.7553150699.

Adding to 253342123 its reverse (321243352), we get a palindrome (574585475).

The spelling of 253342123 in words is "two hundred fifty-three million, three hundred forty-two thousand, one hundred twenty-three".