720231103 has 2 divisors, whose sum is σ = 720231104. Its totient is φ = 720231102.

The previous prime is 720231079. The next prime is 720231107. The reversal of 720231103 is 301132027.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720231103 - 2²¹ = 718133951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720231107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360115551 + 360115552.

It is an arithmetic number, because the mean of its divisors is an integer number (360115552).

Almost surely, 2^720231103 is an apocalyptic number.

720231103 is a deficient number, since it is larger than the sum of its proper divisors (1).

720231103 is an equidigital number, since it uses as much as digits as its factorization.

720231103 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 720231103 is about 26837.1217346421. The cubic root of 720231103 is about 896.3768340608.

The spelling of 720231103 in words is "seven hundred twenty million, two hundred thirty-one thousand, one hundred three".