9120990233 has 2 divisors, whose sum is σ = 9120990234. Its totient is φ = 9120990232.

The previous prime is 9120990217. The next prime is 9120990311. The reversal of 9120990233 is 3320990219.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7513942489 + 1607047744 = 86683^2 + 40088^2 .

It is a cyclic number.

It is not a de Polignac number, because 9120990233 - 2⁴ = 9120990217 is a prime.

It is not a weakly prime, because it can be changed into another prime (9120990733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4560495116 + 4560495117.

It is an arithmetic number, because the mean of its divisors is an integer number (4560495117).

Almost surely, 2^9120990233 is an apocalyptic number.

It is an amenable number.

9120990233 is a deficient number, since it is larger than the sum of its proper divisors (1).

9120990233 is an equidigital number, since it uses as much as digits as its factorization.

9120990233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 9120990233 is about 95503.8754868094. The cubic root of 9120990233 is about 2089.3634679321.

The spelling of 9120990233 in words is "nine billion, one hundred twenty million, nine hundred ninety thousand, two hundred thirty-three".