72102203 has 2 divisors, whose sum is σ = 72102204. Its totient is φ = 72102202.

The previous prime is 72102181. The next prime is 72102211. The reversal of 72102203 is 30220127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 72102203 - 2¹⁸ = 71840059 is a prime.

It is not a weakly prime, because it can be changed into another prime (72102223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36051101 + 36051102.

It is an arithmetic number, because the mean of its divisors is an integer number (36051102).

Almost surely, 2^72102203 is an apocalyptic number.

72102203 is a deficient number, since it is larger than the sum of its proper divisors (1).

72102203 is an equidigital number, since it uses as much as digits as its factorization.

72102203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 17.

The square root of 72102203 is about 8491.3016081164. The cubic root of 72102203 is about 416.2135148847.

The spelling of 72102203 in words is "seventy-two million, one hundred two thousand, two hundred three".