1329119231 has 4 divisors (see below), whose sum is σ = 1449948264. Its totient is φ = 1208290200.

The previous prime is 1329119189. The next prime is 1329119257.

It is a happy number.

1329119231 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1329119231 - 2¹⁴ = 1329102847 is a prime.

It is a super-2 number, since 2×1329119231² = 3533115860428062722, which 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 (1329113231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60414500 + ... + 60414521.

It is an arithmetic number, because the mean of its divisors is an integer number (362487066).

Almost surely, 2^1329119231 is an apocalyptic number.

1329119231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1329119231 is a deficient number, since it is larger than the sum of its proper divisors (120829033).

1329119231 is a wasteful number, since it uses less digits than its factorization.

1329119231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120829032.

The product of its digits is 2916, while the sum is 32.

The square root of 1329119231 is about 36457.0875276674. The cubic root of 1329119231 is about 1099.4816375842.

The spelling of 1329119231 in words is "one billion, three hundred twenty-nine million, one hundred nineteen thousand, two hundred thirty-one".