1331302323 has 16 divisors (see below), whose sum is σ = 1912391936. Its totient is φ = 818929440.

The previous prime is 1331302277. The next prime is 1331302361. The reversal of 1331302323 is 3232031331.

It is not a de Polignac number, because 1331302323 - 2²² = 1327108019 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331302323.

It is not an unprimeable number, because it can be changed into a prime (1331302363) 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, 118938 + ... + 129648.

It is an arithmetic number, because the mean of its divisors is an integer number (119524496).

Almost surely, 2^1331302323 is an apocalyptic number.

1331302323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1331302323 is a deficient number, since it is larger than the sum of its proper divisors (581089613).

1331302323 is a wasteful number, since it uses less digits than its factorization.

1331302323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13914.

The product of its (nonzero) digits is 972, while the sum is 21.

The square root of 1331302323 is about 36487.0158138481. The cubic root of 1331302323 is about 1100.0832782681.

Adding to 1331302323 its reverse (3232031331), we get a palindrome (4563333654).

The spelling of 1331302323 in words is "one billion, three hundred thirty-one million, three hundred two thousand, three hundred twenty-three".