11980951133 has 2 divisors, whose sum is σ = 11980951134. Its totient is φ = 11980951132.

The previous prime is 11980951109. The next prime is 11980951139. The reversal of 11980951133 is 33115908911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11895610489 + 85340644 = 109067^2 + 9238^2 .

It is a cyclic number.

It is not a de Polignac number, because 11980951133 - 2¹² = 11980947037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11980951139) 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, 5990475566 + 5990475567.

It is an arithmetic number, because the mean of its divisors is an integer number (5990475567).

Almost surely, 2^11980951133 is an apocalyptic number.

It is an amenable number.

11980951133 is a deficient number, since it is larger than the sum of its proper divisors (1).

11980951133 is an equidigital number, since it uses as much as digits as its factorization.

11980951133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160, while the sum is 41.

The spelling of 11980951133 in words is "eleven billion, nine hundred eighty million, nine hundred fifty-one thousand, one hundred thirty-three".