1325220241405 has 16 divisors (see below), whose sum is σ = 1592057703600. Its totient is φ = 1058980856832.

The previous prime is 1325220241381. The next prime is 1325220241409. The reversal of 1325220241405 is 5041420225231.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 175218169 + 1325045023236 = 13237^2 + 1151106^2 .

It is a cyclic number.

It is not a de Polignac number, because 1325220241405 - 2¹⁹ = 1325219717117 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325220241409) 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, 68030527 + ... + 68050003.

It is an arithmetic number, because the mean of its divisors is an integer number (99503606475).

Almost surely, 2^{1325220241405} is an apocalyptic number.

It is an amenable number.

1325220241405 is a deficient number, since it is larger than the sum of its proper divisors (266837462195).

1325220241405 is a wasteful number, since it uses less digits than its factorization.

1325220241405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34128.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1325220241405 its reverse (5041420225231), we get a palindrome (6366640466636).

The spelling of 1325220241405 in words is "one trillion, three hundred twenty-five billion, two hundred twenty million, two hundred forty-one thousand, four hundred five".