1025143321224 has 64 divisors (see below), whose sum is σ = 2809895040000. Its totient is φ = 309088422720.

The previous prime is 1025143321177. The next prime is 1025143321229. The reversal of 1025143321224 is 4221233415201.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1025143321191 and 1025143321200.

It is not an unprimeable number, because it can be changed into a prime (1025143321229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9704044 + ... + 9809115.

It is an arithmetic number, because the mean of its divisors is an integer number (43904610000).

Almost surely, 2^{1025143321224} is an apocalyptic number.

It is an amenable number.

1025143321224 is an abundant number, since it is smaller than the sum of its proper divisors (1784751718776).

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

1025143321224 is a wasteful number, since it uses less digits than its factorization.

1025143321224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19513378 (or 19513374 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 1025143321224 its reverse (4221233415201), we get a palindrome (5246376736425).

The spelling of 1025143321224 in words is "one trillion, twenty-five billion, one hundred forty-three million, three hundred twenty-one thousand, two hundred twenty-four".