1323455331 has 16 divisors (see below), whose sum is σ = 1977055488. Its totient is φ = 780415200.

The previous prime is 1323455327. The next prime is 1323455347. The reversal of 1323455331 is 1335543231.

1323455331 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1323455331 - 2² = 1323455327 is a prime.

It is a super-2 number, since 2×1323455331² = 3503068026304639122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323451331) 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, 540735 + ... + 543176.

It is an arithmetic number, because the mean of its divisors is an integer number (123565968).

Almost surely, 2^1323455331 is an apocalyptic number.

1323455331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1323455331 is a deficient number, since it is larger than the sum of its proper divisors (653600157).

1323455331 is a wasteful number, since it uses less digits than its factorization.

1323455331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1083962.

The product of its digits is 16200, while the sum is 30.

The square root of 1323455331 is about 36379.3255984769. The cubic root of 1323455331 is about 1097.9176392515.

Adding to 1323455331 its reverse (1335543231), we get a palindrome (2658998562).

It can be divided in two parts, 1323 and 455331, that added together give a palindrome (456654).

The spelling of 1323455331 in words is "one billion, three hundred twenty-three million, four hundred fifty-five thousand, three hundred thirty-one".