1323323131 has 8 divisors (see below), whose sum is σ = 1425587184. Its totient is φ = 1221126240.

The previous prime is 1323323021. The next prime is 1323323137. The reversal of 1323323131 is 1313233231.

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 1323323131 - 2¹⁵ = 1323290363 is a prime.

It is a super-2 number, since 2×1323323131² = 3502368218079286322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323323137) 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, 28725 + ... + 58921.

It is an arithmetic number, because the mean of its divisors is an integer number (178198398).

Almost surely, 2^1323323131 is an apocalyptic number.

1323323131 is a deficient number, since it is larger than the sum of its proper divisors (102264053).

1323323131 is a wasteful number, since it uses less digits than its factorization.

1323323131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33581.

The product of its digits is 972, while the sum is 22.

The square root of 1323323131 is about 36377.5085870377. The cubic root of 1323323131 is about 1097.8810810235.

Adding to 1323323131 its reverse (1313233231), we get a palindrome (2636556362).

The spelling of 1323323131 in words is "one billion, three hundred twenty-three million, three hundred twenty-three thousand, one hundred thirty-one".