33421301387 has 2 divisors, whose sum is σ = 33421301388. Its totient is φ = 33421301386.

The previous prime is 33421301267. The next prime is 33421301411. The reversal of 33421301387 is 78310312433.

It is a strong prime.

It is an emirp because it is prime and its reverse (78310312433) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33421301387 is a prime.

It is a super-2 number, since 2×33421301387² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33421309387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710650693 + 16710650694.

It is an arithmetic number, because the mean of its divisors is an integer number (16710650694).

Almost surely, 2^33421301387 is an apocalyptic number.

33421301387 is a deficient number, since it is larger than the sum of its proper divisors (1).

33421301387 is an equidigital number, since it uses as much as digits as its factorization.

33421301387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 33421301387 in words is "thirty-three billion, four hundred twenty-one million, three hundred one thousand, three hundred eighty-seven".