33320321131 has 2 divisors, whose sum is σ = 33320321132. Its totient is φ = 33320321130.

The previous prime is 33320321129. The next prime is 33320321137. The reversal of 33320321131 is 13112302333.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33320321131 - 2¹ = 33320321129 is a prime.

It is a super-2 number, since 2×33320321131² (a number of 22 digits) contains 22 as substring.

Together with 33320321129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (33320321137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16660160565 + 16660160566.

It is an arithmetic number, because the mean of its divisors is an integer number (16660160566).

Almost surely, 2^33320321131 is an apocalyptic number.

33320321131 is a deficient number, since it is larger than the sum of its proper divisors (1).

33320321131 is an equidigital number, since it uses as much as digits as its factorization.

33320321131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 33320321131 its reverse (13112302333), we get a palindrome (46432623464).

The spelling of 33320321131 in words is "thirty-three billion, three hundred twenty million, three hundred twenty-one thousand, one hundred thirty-one".