131263603 has 2 divisors, whose sum is σ = 131263604. Its totient is φ = 131263602.

The previous prime is 131263547. The next prime is 131263619. The reversal of 131263603 is 306362131.

It is a strong prime.

It is an emirp because it is prime and its reverse (306362131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131263603 - 2²¹ = 129166451 is a prime.

It is not a weakly prime, because it can be changed into another prime (131264603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65631801 + 65631802.

It is an arithmetic number, because the mean of its divisors is an integer number (65631802).

Almost surely, 2^131263603 is an apocalyptic number.

131263603 is a deficient number, since it is larger than the sum of its proper divisors (1).

131263603 is an equidigital number, since it uses as much as digits as its factorization.

131263603 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 131263603 is about 11457.0329055999. The cubic root of 131263603 is about 508.2157346767.

The spelling of 131263603 in words is "one hundred thirty-one million, two hundred sixty-three thousand, six hundred three".