253130320344 has 128 divisors (see below), whose sum is σ = 716604537600. Its totient is φ = 73807695360.

The previous prime is 253130320343. The next prime is 253130320349. The reversal of 253130320344 is 443023031352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (253130320343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2186787 + ... + 2299629.

It is an arithmetic number, because the mean of its divisors is an integer number (5598472950).

Almost surely, 2^253130320344 is an apocalyptic number.

253130320344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253130320344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358302268800).

253130320344 is an abundant number, since it is smaller than the sum of its proper divisors (463474217256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

253130320344 is a wasteful number, since it uses less digits than its factorization.

253130320344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113185 (or 113181 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 253130320344 its reverse (443023031352), we get a palindrome (696153351696).

The spelling of 253130320344 in words is "two hundred fifty-three billion, one hundred thirty million, three hundred twenty thousand, three hundred forty-four".