70381133321 has 2 divisors, whose sum is σ = 70381133322. Its totient is φ = 70381133320.

The previous prime is 70381133269. The next prime is 70381133323. The reversal of 70381133321 is 12333118307.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56870325625 + 13510807696 = 238475^2 + 116236^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70381133321 is a prime.

It is a Sophie Germain prime.

Together with 70381133323, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (70381133323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35190566660 + 35190566661.

It is an arithmetic number, because the mean of its divisors is an integer number (35190566661).

Almost surely, 2^70381133321 is an apocalyptic number.

It is an amenable number.

70381133321 is a deficient number, since it is larger than the sum of its proper divisors (1).

70381133321 is an equidigital number, since it uses as much as digits as its factorization.

70381133321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 70381133321 in words is "seventy billion, three hundred eighty-one million, one hundred thirty-three thousand, three hundred twenty-one".