100311089 has 4 divisors (see below), whose sum is σ = 105590640. Its totient is φ = 95031540.

The previous prime is 100311059. The next prime is 100311091. The reversal of 100311089 is 980113001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 980113001 = 7 ⋅140016143.

It is not a de Polignac number, because 100311089 - 2¹⁶ = 100245553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100311059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2639747 + ... + 2639784.

It is an arithmetic number, because the mean of its divisors is an integer number (26397660).

Almost surely, 2^100311089 is an apocalyptic number.

100311089 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

100311089 is a deficient number, since it is larger than the sum of its proper divisors (5279551).

100311089 is an equidigital number, since it uses as much as digits as its factorization.

100311089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5279550.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 100311089 is about 10015.5423717340. The cubic root of 100311089 is about 464.6397008582.

The spelling of 100311089 in words is "one hundred million, three hundred eleven thousand, eighty-nine".