872180203 has 2 divisors, whose sum is σ = 872180204. Its totient is φ = 872180202.

The previous prime is 872180201. The next prime is 872180233. The reversal of 872180203 is 302081278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872180203 - 2¹ = 872180201 is a prime.

Together with 872180201, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (872180201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436090101 + 436090102.

It is an arithmetic number, because the mean of its divisors is an integer number (436090102).

Almost surely, 2^872180203 is an apocalyptic number.

872180203 is a deficient number, since it is larger than the sum of its proper divisors (1).

872180203 is an equidigital number, since it uses as much as digits as its factorization.

872180203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 872180203 is about 29532.6971846460. The cubic root of 872180203 is about 955.4370423633.

The spelling of 872180203 in words is "eight hundred seventy-two million, one hundred eighty thousand, two hundred three".