10111201989 has 32 divisors (see below), whose sum is σ = 15866400000. Its totient is φ = 5724758592.

The previous prime is 10111201963. The next prime is 10111202009. The reversal of 10111201989 is 98910211101.

10111201989 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10111201989 - 2¹² = 10111197893 is a prime.

It is a super-2 number, since 2×10111201989² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10111201909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 67087 + ... + 157235.

It is an arithmetic number, because the mean of its divisors is an integer number (495825000).

Almost surely, 2^10111201989 is an apocalyptic number.

It is an amenable number.

10111201989 is a deficient number, since it is larger than the sum of its proper divisors (5755198011).

10111201989 is an equidigital number, since it uses as much as digits as its factorization.

10111201989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90282 (or 90268 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 33.

The spelling of 10111201989 in words is "ten billion, one hundred eleven million, two hundred one thousand, nine hundred eighty-nine".