1100989433 has 2 divisors, whose sum is σ = 1100989434. Its totient is φ = 1100989432.

The previous prime is 1100989391. The next prime is 1100989451. The reversal of 1100989433 is 3349890011.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 601377529 + 499611904 = 24523^2 + 22352^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100989433 - 2¹⁸ = 1100727289 is a prime.

It is a super-2 number, since 2×1100989433² = 2424355463155322978, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1100989453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550494716 + 550494717.

It is an arithmetic number, because the mean of its divisors is an integer number (550494717).

Almost surely, 2^1100989433 is an apocalyptic number.

It is an amenable number.

1100989433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100989433 is an equidigital number, since it uses as much as digits as its factorization.

1100989433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 1100989433 is about 33181.1608145345. The cubic root of 1100989433 is about 1032.5895293740.

The spelling of 1100989433 in words is "one billion, one hundred million, nine hundred eighty-nine thousand, four hundred thirty-three".