131303131123 has 2 divisors, whose sum is σ = 131303131124. Its totient is φ = 131303131122.

The previous prime is 131303131121. The next prime is 131303131139. The reversal of 131303131123 is 321131303131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131303131123 - 2¹ = 131303131121 is a prime.

It is a super-2 number, since 2×131303131123² (a number of 23 digits) contains 22 as substring.

Together with 131303131121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 131303131094 and 131303131103.

It is not a weakly prime, because it can be changed into another prime (131303131121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65651565561 + 65651565562.

It is an arithmetic number, because the mean of its divisors is an integer number (65651565562).

Almost surely, 2^131303131123 is an apocalyptic number.

131303131123 is a deficient number, since it is larger than the sum of its proper divisors (1).

131303131123 is an equidigital number, since it uses as much as digits as its factorization.

131303131123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 131303131123 its reverse (321131303131), we get a palindrome (452434434254).

The spelling of 131303131123 in words is "one hundred thirty-one billion, three hundred three million, one hundred thirty-one thousand, one hundred twenty-three".