1332231311 has 4 divisors (see below), whose sum is σ = 1340208912. Its totient is φ = 1324253712.

The previous prime is 1332231301. The next prime is 1332231343. The reversal of 1332231311 is 1131322331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1131322331 = 15139 ⋅74729.

It is a cyclic number.

It is not a de Polignac number, because 1332231311 - 2¹⁸ = 1331969167 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 (1332231301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3988550 + ... + 3988883.

It is an arithmetic number, because the mean of its divisors is an integer number (335052228).

Almost surely, 2^1332231311 is an apocalyptic number.

1332231311 is a deficient number, since it is larger than the sum of its proper divisors (7977601).

1332231311 is an equidigital number, since it uses as much as digits as its factorization.

1332231311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7977600.

The product of its digits is 324, while the sum is 20.

The square root of 1332231311 is about 36499.7439854035. The cubic root of 1332231311 is about 1100.3390995865.

Adding to 1332231311 its reverse (1131322331), we get a palindrome (2463553642).

The spelling of 1332231311 in words is "one billion, three hundred thirty-two million, two hundred thirty-one thousand, three hundred eleven".