131103103 has 2 divisors, whose sum is σ = 131103104. Its totient is φ = 131103102.

The previous prime is 131103101. The next prime is 131103127. The reversal of 131103103 is 301301131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131103103 - 2¹ = 131103101 is a prime.

Together with 131103101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131103101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65551551 + 65551552.

It is an arithmetic number, because the mean of its divisors is an integer number (65551552).

Almost surely, 2^131103103 is an apocalyptic number.

131103103 is a deficient number, since it is larger than the sum of its proper divisors (1).

131103103 is an equidigital number, since it uses as much as digits as its factorization.

131103103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 131103103 is about 11450.0263318475. The cubic root of 131103103 is about 508.0085132494.

Adding to 131103103 its reverse (301301131), we get a palindrome (432404234).

The spelling of 131103103 in words is "one hundred thirty-one million, one hundred three thousand, one hundred three".