1331323033 has 2 divisors, whose sum is σ = 1331323034. Its totient is φ = 1331323032.

The previous prime is 1331322991. The next prime is 1331323073. The reversal of 1331323033 is 3303231331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 814988304 + 516334729 = 28548^2 + 22723^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331323033 - 2²¹ = 1329225881 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331322995 and 1331323013.

It is not a weakly prime, because it can be changed into another prime (1331323073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665661516 + 665661517.

It is an arithmetic number, because the mean of its divisors is an integer number (665661517).

Almost surely, 2^1331323033 is an apocalyptic number.

It is an amenable number.

1331323033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331323033 is an equidigital number, since it uses as much as digits as its factorization.

1331323033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 22.

The square root of 1331323033 is about 36487.2996123309. The cubic root of 1331323033 is about 1100.0889826089.

Adding to 1331323033 its reverse (3303231331), we get a palindrome (4634554364).

The spelling of 1331323033 in words is "one billion, three hundred thirty-one million, three hundred twenty-three thousand, thirty-three".