1331000033 has 4 divisors (see below), whose sum is σ = 1452000048. Its totient is φ = 1210000020.

The previous prime is 1331000017. The next prime is 1331000051. The reversal of 1331000033 is 3300001331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1331000033 - 2⁴ = 1331000017 is a prime.

It is a super-2 number, since 2×1331000033² = 3543122175692002178, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1330999981 and 1331000017.

It is not an unprimeable number, because it can be changed into a prime (1331000233) 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 3 ways as a sum of consecutive naturals, for example, 60499991 + ... + 60500012.

It is an arithmetic number, because the mean of its divisors is an integer number (363000012).

Almost surely, 2^1331000033 is an apocalyptic number.

It is an amenable number.

1331000033 is a deficient number, since it is larger than the sum of its proper divisors (121000015).

1331000033 is a wasteful number, since it uses less digits than its factorization.

1331000033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121000014.

The product of its (nonzero) digits is 81, while the sum is 14.

The square root of 1331000033 is about 36482.8731461764. The cubic root of 1331000033 is about 1100.0000090909. Note that the first 5 decimals are identical.

Adding to 1331000033 its reverse (3300001331), we get a palindrome (4631001364).

The spelling of 1331000033 in words is "one billion, three hundred thirty-one million, thirty-three", and thus it is an aban number.