33961381043 has 2 divisors, whose sum is σ = 33961381044. Its totient is φ = 33961381042.

The previous prime is 33961380953. The next prime is 33961381121. The reversal of 33961381043 is 34018316933.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33961381043 - 2¹⁴ = 33961364659 is a prime.

It is not a weakly prime, because it can be changed into another prime (33961381543) 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 as a sum of consecutive naturals, namely, 16980690521 + 16980690522.

It is an arithmetic number, because the mean of its divisors is an integer number (16980690522).

Almost surely, 2^33961381043 is an apocalyptic number.

33961381043 is a deficient number, since it is larger than the sum of its proper divisors (1).

33961381043 is an equidigital number, since it uses as much as digits as its factorization.

33961381043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 41.

Adding to 33961381043 its reverse (34018316933), we get a palindrome (67979697976).

The spelling of 33961381043 in words is "thirty-three billion, nine hundred sixty-one million, three hundred eighty-one thousand, forty-three".