33130203331991 has 2 divisors, whose sum is σ = 33130203331992. Its totient is φ = 33130203331990.

The previous prime is 33130203331919. The next prime is 33130203332077. The reversal of 33130203331991 is 19913330203133.

Together with previous prime (33130203331919) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33130203331991 - 2¹⁰ = 33130203330967 is a prime.

It is a super-2 number, since 2×33130203331991² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33130203391991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16565101665995 + 16565101665996.

It is an arithmetic number, because the mean of its divisors is an integer number (16565101665996).

Almost surely, 2^{33130203331991} is an apocalyptic number.

33130203331991 is a deficient number, since it is larger than the sum of its proper divisors (1).

33130203331991 is an equidigital number, since it uses as much as digits as its factorization.

33130203331991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 118098, while the sum is 41.

The spelling of 33130203331991 in words is "thirty-three trillion, one hundred thirty billion, two hundred three million, three hundred thirty-one thousand, nine hundred ninety-one".