231355603 has 2 divisors, whose sum is σ = 231355604. Its totient is φ = 231355602.

The previous prime is 231355543. The next prime is 231355627. The reversal of 231355603 is 306553132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 231355603 - 2¹³ = 231347411 is a prime.

It is not a weakly prime, because it can be changed into another prime (231355673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115677801 + 115677802.

It is an arithmetic number, because the mean of its divisors is an integer number (115677802).

Almost surely, 2^231355603 is an apocalyptic number.

231355603 is a deficient number, since it is larger than the sum of its proper divisors (1).

231355603 is an equidigital number, since it uses as much as digits as its factorization.

231355603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 28.

The square root of 231355603 is about 15210.3781346816. The cubic root of 231355603 is about 613.8939319231.

The spelling of 231355603 in words is "two hundred thirty-one million, three hundred fifty-five thousand, six hundred three".