253203440231 has 8 divisors (see below), whose sum is σ = 289928663424. Its totient is φ = 216616542840.

The previous prime is 253203440213. The next prime is 253203440309. The reversal of 253203440231 is 132044302352.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 253203440231 - 2¹⁸ = 253203178087 is a prime.

It is a super-2 number, since 2×253203440231² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253203440194 and 253203440203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253203440201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34577525 + ... + 34584846.

It is an arithmetic number, because the mean of its divisors is an integer number (36241082928).

Almost surely, 2^253203440231 is an apocalyptic number.

253203440231 is a deficient number, since it is larger than the sum of its proper divisors (36725223193).

253203440231 is an equidigital number, since it uses as much as digits as its factorization.

253203440231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69162901.

The product of its (nonzero) digits is 17280, while the sum is 29.

Adding to 253203440231 its reverse (132044302352), we get a palindrome (385247742583).

The spelling of 253203440231 in words is "two hundred fifty-three billion, two hundred three million, four hundred forty thousand, two hundred thirty-one".