1325101100521 has 64 divisors (see below), whose sum is σ = 1612491079680. Its totient is φ = 1076096736000.

The previous prime is 1325101100473. The next prime is 1325101100551. The reversal of 1325101100521 is 1250011015231.

It is not a de Polignac number, because 1325101100521 - 2¹¹ = 1325101098473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1325101100492 and 1325101100501.

It is not an unprimeable number, because it can be changed into a prime (1325101100551) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 25330290 + ... + 25382548.

It is an arithmetic number, because the mean of its divisors is an integer number (25195173120).

Almost surely, 2^{1325101100521} is an apocalyptic number.

1325101100521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1325101100521 is a deficient number, since it is larger than the sum of its proper divisors (287389979159).

1325101100521 is a wasteful number, since it uses less digits than its factorization.

1325101100521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52438.

The product of its (nonzero) digits is 300, while the sum is 22.

Adding to 1325101100521 its reverse (1250011015231), we get a palindrome (2575112115752).

The spelling of 1325101100521 in words is "one trillion, three hundred twenty-five billion, one hundred one million, one hundred thousand, five hundred twenty-one".