72112303 has 2 divisors, whose sum is σ = 72112304. Its totient is φ = 72112302.

The previous prime is 72112289. The next prime is 72112319. The reversal of 72112303 is 30321127.

It is a weak prime.

It is an emirp because it is prime and its reverse (30321127) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72112303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72112343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36056151 + 36056152.

It is an arithmetic number, because the mean of its divisors is an integer number (36056152).

Almost surely, 2^72112303 is an apocalyptic number.

72112303 is a deficient number, since it is larger than the sum of its proper divisors (1).

72112303 is an equidigital number, since it uses as much as digits as its factorization.

72112303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 72112303 is about 8491.8963135450. The cubic root of 72112303 is about 416.2329482264.

The spelling of 72112303 in words is "seventy-two million, one hundred twelve thousand, three hundred three".