33121020007 has 2 divisors, whose sum is σ = 33121020008. Its totient is φ = 33121020006.

The previous prime is 33121019999. The next prime is 33121020029. The reversal of 33121020007 is 70002012133.

It is a weak prime.

It is an emirp because it is prime and its reverse (70002012133) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 33121020007 - 2³ = 33121019999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (33121020047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16560510003 + 16560510004.

It is an arithmetic number, because the mean of its divisors is an integer number (16560510004).

Almost surely, 2^33121020007 is an apocalyptic number.

33121020007 is a deficient number, since it is larger than the sum of its proper divisors (1).

33121020007 is an equidigital number, since it uses as much as digits as its factorization.

33121020007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The spelling of 33121020007 in words is "thirty-three billion, one hundred twenty-one million, twenty thousand, seven".