253131404233 has 4 divisors (see below), whose sum is σ = 253162659268. Its totient is φ = 253100149200.

The previous prime is 253131404231. The next prime is 253131404237. The reversal of 253131404233 is 332404131352.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 252087338889 + 1044065344 = 502083^2 + 32312^2 .

It is a cyclic number.

It is not a de Polignac number, because 253131404233 - 2¹ = 253131404231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 253131404195 and 253131404204.

It is not an unprimeable number, because it can be changed into a prime (253131404231) 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, 15615366 + ... + 15631567.

It is an arithmetic number, because the mean of its divisors is an integer number (63290664817).

Almost surely, 2^253131404233 is an apocalyptic number.

It is an amenable number.

253131404233 is a deficient number, since it is larger than the sum of its proper divisors (31255035).

253131404233 is an equidigital number, since it uses as much as digits as its factorization.

253131404233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31255034.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 253131404233 its reverse (332404131352), we get a palindrome (585535535585).

The spelling of 253131404233 in words is "two hundred fifty-three billion, one hundred thirty-one million, four hundred four thousand, two hundred thirty-three".