100211389 has 2 divisors, whose sum is σ = 100211390. Its totient is φ = 100211388.

The previous prime is 100211381. The next prime is 100211477. The reversal of 100211389 is 983112001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99900025 + 311364 = 9995^2 + 558^2 .

It is an emirp because it is prime and its reverse (983112001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 100211389 - 2³ = 100211381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100211381) 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 as a sum of consecutive naturals, namely, 50105694 + 50105695.

It is an arithmetic number, because the mean of its divisors is an integer number (50105695).

Almost surely, 2^100211389 is an apocalyptic number.

It is an amenable number.

100211389 is a deficient number, since it is larger than the sum of its proper divisors (1).

100211389 is an equidigital number, since it uses as much as digits as its factorization.

100211389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The square root of 100211389 is about 10010.5638702323. The cubic root of 100211389 is about 464.4857134490.

The spelling of 100211389 in words is "one hundred million, two hundred eleven thousand, three hundred eighty-nine".