131420140723 has 2 divisors, whose sum is σ = 131420140724. Its totient is φ = 131420140722.

The previous prime is 131420140693. The next prime is 131420140751. The reversal of 131420140723 is 327041024131.

It is an a-pointer prime, because the next prime (131420140751) can be obtained adding 131420140723 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131420140723 - 2²¹ = 131418043571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131420140691 and 131420140700.

It is not a weakly prime, because it can be changed into another prime (131420140763) 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, 65710070361 + 65710070362.

It is an arithmetic number, because the mean of its divisors is an integer number (65710070362).

Almost surely, 2^131420140723 is an apocalyptic number.

131420140723 is a deficient number, since it is larger than the sum of its proper divisors (1).

131420140723 is an equidigital number, since it uses as much as digits as its factorization.

131420140723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 131420140723 its reverse (327041024131), we get a palindrome (458461164854).

The spelling of 131420140723 in words is "one hundred thirty-one billion, four hundred twenty million, one hundred forty thousand, seven hundred twenty-three".