131623103 has 2 divisors, whose sum is σ = 131623104. Its totient is φ = 131623102.

The previous prime is 131623087. The next prime is 131623109. The reversal of 131623103 is 301326131.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (301326131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131623103 - 2⁴ = 131623087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131623109) 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, 65811551 + 65811552.

It is an arithmetic number, because the mean of its divisors is an integer number (65811552).

Almost surely, 2^131623103 is an apocalyptic number.

131623103 is a deficient number, since it is larger than the sum of its proper divisors (1).

131623103 is an equidigital number, since it uses as much as digits as its factorization.

131623103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 131623103 is about 11472.7112314396. The cubic root of 131623103 is about 508.6792727070.

Adding to 131623103 its reverse (301326131), we get a palindrome (432949234).

The spelling of 131623103 in words is "one hundred thirty-one million, six hundred twenty-three thousand, one hundred three".