253031321140 has 48 divisors (see below), whose sum is σ = 581939084160. Its totient is φ = 91843436160.

The previous prime is 253031321129. The next prime is 253031321203. The reversal of 253031321140 is 41123130352.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8232096 + ... + 8262775.

It is an arithmetic number, because the mean of its divisors is an integer number (12123730920).

Almost surely, 2^253031321140 is an apocalyptic number.

253031321140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

253031321140 is an abundant number, since it is smaller than the sum of its proper divisors (328907763020).

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

253031321140 is a wasteful number, since it uses less digits than its factorization.

253031321140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16494952 (or 16494950 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 253031321140 its reverse (41123130352), we get a palindrome (294154451492).

The spelling of 253031321140 in words is "two hundred fifty-three billion, thirty-one million, three hundred twenty-one thousand, one hundred forty".