1322311331 has 16 divisors (see below), whose sum is σ = 1507707648. Its totient is φ = 1147951200.

The previous prime is 1322311307. The next prime is 1322311339. The reversal of 1322311331 is 1331132231.

It is not a de Polignac number, because 1322311331 - 2⁶ = 1322311267 is a prime.

It is a super-2 number, since 2×1322311331² = 3497014512181983122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1322311339) 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 15 ways as a sum of consecutive naturals, for example, 163280 + ... + 171186.

It is an arithmetic number, because the mean of its divisors is an integer number (94231728).

Almost surely, 2^1322311331 is an apocalyptic number.

1322311331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1322311331 is a deficient number, since it is larger than the sum of its proper divisors (185396317).

1322311331 is a wasteful number, since it uses less digits than its factorization.

1322311331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8602.

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

The square root of 1322311331 is about 36363.5989830490. The cubic root of 1322311331 is about 1097.6011999465.

Adding to 1322311331 its reverse (1331132231), we get a palindrome (2653443562).

Subtracting 1322311331 from its reverse (1331132231), we obtain a square (8820900 = 2970²).

The spelling of 1322311331 in words is "one billion, three hundred twenty-two million, three hundred eleven thousand, three hundred thirty-one".