33420766231 has 2 divisors, whose sum is σ = 33420766232. Its totient is φ = 33420766230.

The previous prime is 33420766229. The next prime is 33420766273. The reversal of 33420766231 is 13266702433.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 33420766231 - 2¹ = 33420766229 is a prime.

It is a super-2 number, since 2×33420766231² (a number of 22 digits) contains 22 as substring.

Together with 33420766229, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33420766201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710383115 + 16710383116.

It is an arithmetic number, because the mean of its divisors is an integer number (16710383116).

Almost surely, 2^33420766231 is an apocalyptic number.

33420766231 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420766231 is an equidigital number, since it uses as much as digits as its factorization.

33420766231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 37.

The spelling of 33420766231 in words is "thirty-three billion, four hundred twenty million, seven hundred sixty-six thousand, two hundred thirty-one".