253212123 has 16 divisors (see below), whose sum is σ = 351718400. Its totient is φ = 161857440.

The previous prime is 253212119. The next prime is 253212139. The reversal of 253212123 is 321212352.

It is not a de Polignac number, because 253212123 - 2² = 253212119 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 253212123.

It is not an unprimeable number, because it can be changed into a prime (253212103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2353 + ... + 22626.

It is an arithmetic number, because the mean of its divisors is an integer number (21982400).

Almost surely, 2^253212123 is an apocalyptic number.

253212123 is a deficient number, since it is larger than the sum of its proper divisors (98506277).

253212123 is a wasteful number, since it uses less digits than its factorization.

253212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25122.

The product of its digits is 720, while the sum is 21.

The square root of 253212123 is about 15912.6403528767. The cubic root of 253212123 is about 632.6470658455.

Adding to 253212123 its reverse (321212352), we get a palindrome (574424475).

The spelling of 253212123 in words is "two hundred fifty-three million, two hundred twelve thousand, one hundred twenty-three".