131377123 has 2 divisors, whose sum is σ = 131377124. Its totient is φ = 131377122.

The previous prime is 131377111. The next prime is 131377157. The reversal of 131377123 is 321773131.

It is a weak prime.

It is an emirp because it is prime and its reverse (321773131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131377123 - 2⁹ = 131376611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131377091 and 131377100.

It is not a weakly prime, because it can be changed into another prime (131377423) 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, 65688561 + 65688562.

It is an arithmetic number, because the mean of its divisors is an integer number (65688562).

Almost surely, 2^131377123 is an apocalyptic number.

131377123 is a deficient number, since it is larger than the sum of its proper divisors (1).

131377123 is an equidigital number, since it uses as much as digits as its factorization.

131377123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646, while the sum is 28.

The square root of 131377123 is about 11461.9859971996. The cubic root of 131377123 is about 508.3621982952.

The spelling of 131377123 in words is "one hundred thirty-one million, three hundred seventy-seven thousand, one hundred twenty-three".