2181314203 has 2 divisors, whose sum is σ = 2181314204. Its totient is φ = 2181314202.

The previous prime is 2181314167. The next prime is 2181314231. The reversal of 2181314203 is 3024131812.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2181314203 - 2⁹ = 2181313691 is a prime.

It is not a weakly prime, because it can be changed into another prime (2181314263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1090657101 + 1090657102.

It is an arithmetic number, because the mean of its divisors is an integer number (1090657102).

Almost surely, 2^2181314203 is an apocalyptic number.

2181314203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2181314203 is an equidigital number, since it uses as much as digits as its factorization.

2181314203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2181314203 is about 46704.5415671752. The cubic root of 2181314203 is about 1296.8987621082.

The spelling of 2181314203 in words is "two billion, one hundred eighty-one million, three hundred fourteen thousand, two hundred three".