131420423 has 2 divisors, whose sum is σ = 131420424. Its totient is φ = 131420422.

The previous prime is 131420417. The next prime is 131420437. The reversal of 131420423 is 324024131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131420423 - 2⁴ = 131420407 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131420395 and 131420404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131420323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65710211 + 65710212.

It is an arithmetic number, because the mean of its divisors is an integer number (65710212).

Almost surely, 2^131420423 is an apocalyptic number.

131420423 is a deficient number, since it is larger than the sum of its proper divisors (1).

131420423 is an equidigital number, since it uses as much as digits as its factorization.

131420423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 131420423 is about 11463.8746940116. The cubic root of 131420423 is about 508.4180417704.

Adding to 131420423 its reverse (324024131), we get a palindrome (455444554).

The spelling of 131420423 in words is "one hundred thirty-one million, four hundred twenty thousand, four hundred twenty-three".