12103381 has 2 divisors, whose sum is σ = 12103382. Its totient is φ = 12103380.

The previous prime is 12103367. The next prime is 12103387. The reversal of 12103381 is 18330121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6300100 + 5803281 = 2510^2 + 2409^2 .

It is a cyclic number.

It is not a de Polignac number, because 12103381 - 2¹⁷ = 11972309 is a prime.

It is a super-2 number, since 2×12103381² = 292983663262322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12103387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051690 + 6051691.

It is an arithmetic number, because the mean of its divisors is an integer number (6051691).

Almost surely, 2^12103381 is an apocalyptic number.

It is an amenable number.

12103381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12103381 is an equidigital number, since it uses as much as digits as its factorization.

12103381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 12103381 is about 3478.9913768217. The cubic root of 12103381 is about 229.5984233948.

The spelling of 12103381 in words is "twelve million, one hundred three thousand, three hundred eighty-one".