9970921133 has 2 divisors, whose sum is σ = 9970921134. Its totient is φ = 9970921132.

The previous prime is 9970921123. The next prime is 9970921183. The reversal of 9970921133 is 3311290799.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7992717604 + 1978203529 = 89402^2 + 44477^2 .

It is a cyclic number.

It is not a de Polignac number, because 9970921133 - 2²⁰ = 9969872557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9970921123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4985460566 + 4985460567.

It is an arithmetic number, because the mean of its divisors is an integer number (4985460567).

Almost surely, 2^9970921133 is an apocalyptic number.

It is an amenable number.

9970921133 is a deficient number, since it is larger than the sum of its proper divisors (1).

9970921133 is an equidigital number, since it uses as much as digits as its factorization.

9970921133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 44.

The square root of 9970921133 is about 99854.4998134786. The cubic root of 9970921133 is about 2152.3443785974.

The spelling of 9970921133 in words is "nine billion, nine hundred seventy million, nine hundred twenty-one thousand, one hundred thirty-three".