11010231989 has 2 divisors, whose sum is σ = 11010231990. Its totient is φ = 11010231988.

The previous prime is 11010231983. The next prime is 11010232033. The reversal of 11010231989 is 98913201011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10770911089 + 239320900 = 103783^2 + 15470^2 .

It is a cyclic number.

It is not a de Polignac number, because 11010231989 - 2³² = 6715264693 is a prime.

It is a super-2 number, since 2×11010231989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11010231983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505115994 + 5505115995.

It is an arithmetic number, because the mean of its divisors is an integer number (5505115995).

Almost surely, 2^11010231989 is an apocalyptic number.

It is an amenable number.

11010231989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010231989 is an equidigital number, since it uses as much as digits as its factorization.

11010231989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 35.

The spelling of 11010231989 in words is "eleven billion, ten million, two hundred thirty-one thousand, nine hundred eighty-nine".