1025312231320 has 96 divisors (see below), whose sum is σ = 2498487800400. Its totient is φ = 378512150016.

The previous prime is 1025312231303. The next prime is 1025312231323. The reversal of 1025312231320 is 231322135201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1025312231323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60378591 + ... + 60395569.

Almost surely, 2^{1025312231320} is an apocalyptic number.

1025312231320 is a gapful number since it is divisible by the number (10) 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 1025312231320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1249243900200).

1025312231320 is an abundant number, since it is smaller than the sum of its proper divisors (1473175569080).

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

1025312231320 is a wasteful number, since it uses less digits than its factorization.

1025312231320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25949 (or 25932 counting only the distinct ones).

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

Adding to 1025312231320 its reverse (231322135201), we get a palindrome (1256634366521).

The spelling of 1025312231320 in words is "one trillion, twenty-five billion, three hundred twelve million, two hundred thirty-one thousand, three hundred twenty".