1325043424521 has 12 divisors (see below), whose sum is σ = 1914477038448. Its totient is φ = 883119779064.

The previous prime is 1325043424519. The next prime is 1325043424531. The reversal of 1325043424521 is 1254243405231.

It is a happy number.

1325043424521 is a `hidden beast` number, since 1 + 3 + 2 + 50 + 43 + 42 + 4 + 521 = 666.

It is not a de Polignac number, because 1325043424521 - 2¹ = 1325043424519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1325043424511) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20174055 + ... + 20239628.

It is an arithmetic number, because the mean of its divisors is an integer number (159539753204).

Almost surely, 2^{1325043424521} is an apocalyptic number.

It is an amenable number.

1325043424521 is a deficient number, since it is larger than the sum of its proper divisors (589433613927).

1325043424521 is a wasteful number, since it uses less digits than its factorization.

1325043424521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40417332 (or 40417329 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

Adding to 1325043424521 its reverse (1254243405231), we get a palindrome (2579286829752).

The spelling of 1325043424521 in words is "one trillion, three hundred twenty-five billion, forty-three million, four hundred twenty-four thousand, five hundred twenty-one".