1325211311 has 4 divisors (see below), whose sum is σ = 1350215352. Its totient is φ = 1300207272.

The previous prime is 1325211269. The next prime is 1325211341. The reversal of 1325211311 is 1131125231.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1131125231 = 16087 ⋅70313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1325211311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1325211341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12501941 + ... + 12502046.

It is an arithmetic number, because the mean of its divisors is an integer number (337553838).

Almost surely, 2^1325211311 is an apocalyptic number.

1325211311 is a deficient number, since it is larger than the sum of its proper divisors (25004041).

1325211311 is an equidigital number, since it uses as much as digits as its factorization.

1325211311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25004040.

The product of its digits is 180, while the sum is 20.

The square root of 1325211311 is about 36403.4519104988. The cubic root of 1325211311 is about 1098.4030024101.

Adding to 1325211311 its reverse (1131125231), we get a palindrome (2456336542).

The spelling of 1325211311 in words is "one billion, three hundred twenty-five million, two hundred eleven thousand, three hundred eleven".