33121005011 has 2 divisors, whose sum is σ = 33121005012. Its totient is φ = 33121005010.

The previous prime is 33121004993. The next prime is 33121005023. The reversal of 33121005011 is 11050012133.

It is a strong prime.

It is an emirp because it is prime and its reverse (11050012133) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33121005011 is a prime.

It is a super-2 number, since 2×33121005011² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33121005061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16560502505 + 16560502506.

It is an arithmetic number, because the mean of its divisors is an integer number (16560502506).

Almost surely, 2^33121005011 is an apocalyptic number.

33121005011 is a deficient number, since it is larger than the sum of its proper divisors (1).

33121005011 is an equidigital number, since it uses as much as digits as its factorization.

33121005011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 33121005011 its reverse (11050012133), we get a palindrome (44171017144).

The spelling of 33121005011 in words is "thirty-three billion, one hundred twenty-one million, five thousand, eleven".