1325204203440 has 80 divisors (see below), whose sum is σ = 4424143274208. Its totient is φ = 326204110848.

The previous prime is 1325204203339. The next prime is 1325204203469. The reversal of 1325204203440 is 443024025231.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1325204203398 and 1325204203407.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212369349 + ... + 212375588.

Almost surely, 2^{1325204203440} is an apocalyptic number.

1325204203440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1325204203440 is an abundant number, since it is smaller than the sum of its proper divisors (3098939070768).

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

1325204203440 is a wasteful number, since it uses less digits than its factorization.

1325204203440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 424744966 (or 424744960 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 1325204203440 its reverse (443024025231), we get a palindrome (1768228228671).

The spelling of 1325204203440 in words is "one trillion, three hundred twenty-five billion, two hundred four million, two hundred three thousand, four hundred forty".