1325220400511 has 8 divisors (see below), whose sum is σ = 1515080662560. Its totient is φ = 1135495903968.

The previous prime is 1325220400393. The next prime is 1325220400577. The reversal of 1325220400511 is 1150040225231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1325220400511 - 2¹⁸ = 1325220138367 is a prime.

It is a super-2 number, since 2×1325220400511² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325220400211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33920456 + ... + 33959501.

It is an arithmetic number, because the mean of its divisors is an integer number (189385082820).

Almost surely, 2^{1325220400511} is an apocalyptic number.

1325220400511 is a deficient number, since it is larger than the sum of its proper divisors (189860262049).

1325220400511 is an equidigital number, since it uses as much as digits as its factorization.

1325220400511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67882753.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 1325220400511 its reverse (1150040225231), we get a palindrome (2475260625742).

The spelling of 1325220400511 in words is "one trillion, three hundred twenty-five billion, two hundred twenty million, four hundred thousand, five hundred eleven".