12101893 has 2 divisors, whose sum is σ = 12101894. Its totient is φ = 12101892.

The previous prime is 12101891. The next prime is 12101927. The reversal of 12101893 is 39810121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6260004 + 5841889 = 2502^2 + 2417^2 .

It is a cyclic number.

It is not a de Polignac number, because 12101893 - 2¹ = 12101891 is a prime.

Together with 12101891, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12101891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050946 + 6050947.

It is an arithmetic number, because the mean of its divisors is an integer number (6050947).

Almost surely, 2^12101893 is an apocalyptic number.

It is an amenable number.

12101893 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101893 is an equidigital number, since it uses as much as digits as its factorization.

12101893 is an evil number, because the sum of its binary digits is even.

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

The square root of 12101893 is about 3478.7775151625. Note that the first 3 decimals coincide. The cubic root of 12101893 is about 229.5890140004.

The spelling of 12101893 in words is "twelve million, one hundred one thousand, eight hundred ninety-three".