253630031323 has 4 divisors (see below), whose sum is σ = 266978980360. Its totient is φ = 240281082288.

The previous prime is 253630031311. The next prime is 253630031339. The reversal of 253630031323 is 323130036352.

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

It is not a de Polignac number, because 253630031323 - 2²⁵ = 253596476891 is a prime.

It is a super-2 number, since 2×253630031323² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (253630031383) 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, 6674474490 + ... + 6674474527.

It is an arithmetic number, because the mean of its divisors is an integer number (66744745090).

Almost surely, 2^253630031323 is an apocalyptic number.

253630031323 is a deficient number, since it is larger than the sum of its proper divisors (13348949037).

253630031323 is a wasteful number, since it uses less digits than its factorization.

253630031323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13348949036.

The product of its (nonzero) digits is 29160, while the sum is 31.

Adding to 253630031323 its reverse (323130036352), we get a palindrome (576760067675).

The spelling of 253630031323 in words is "two hundred fifty-three billion, six hundred thirty million, thirty-one thousand, three hundred twenty-three".