253135021412 has 96 divisors (see below), whose sum is σ = 568605972480. Its totient is φ = 95911464960.

The previous prime is 253135021327. The next prime is 253135021421. The reversal of 253135021412 is 214120531352.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 978914 + ... + 1210182.

It is an arithmetic number, because the mean of its divisors is an integer number (5922978880).

Almost surely, 2^253135021412 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 253135021412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284302986240).

253135021412 is an abundant number, since it is smaller than the sum of its proper divisors (315470951068).

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

253135021412 is a wasteful number, since it uses less digits than its factorization.

253135021412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231421 (or 231419 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 253135021412 its reverse (214120531352), we get a palindrome (467255552764).

The spelling of 253135021412 in words is "two hundred fifty-three billion, one hundred thirty-five million, twenty-one thousand, four hundred twelve".