131333903 has 2 divisors, whose sum is σ = 131333904. Its totient is φ = 131333902.

The previous prime is 131333899. The next prime is 131333957. The reversal of 131333903 is 309333131.

It is a weak prime.

It is an emirp because it is prime and its reverse (309333131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131333903 - 2² = 131333899 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131333963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65666951 + 65666952.

It is an arithmetic number, because the mean of its divisors is an integer number (65666952).

Almost surely, 2^131333903 is an apocalyptic number.

131333903 is a deficient number, since it is larger than the sum of its proper divisors (1).

131333903 is an equidigital number, since it uses as much as digits as its factorization.

131333903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 26.

The square root of 131333903 is about 11460.1004794897. The cubic root of 131333903 is about 508.3064457575.

The spelling of 131333903 in words is "one hundred thirty-one million, three hundred thirty-three thousand, nine hundred three".