131022403 has 2 divisors, whose sum is σ = 131022404. Its totient is φ = 131022402.

The previous prime is 131022391. The next prime is 131022407. The reversal of 131022403 is 304220131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131022403 - 2¹³ = 131014211 is a prime.

It is not a weakly prime, because it can be changed into another prime (131022407) 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, 65511201 + 65511202.

It is an arithmetic number, because the mean of its divisors is an integer number (65511202).

Almost surely, 2^131022403 is an apocalyptic number.

131022403 is a deficient number, since it is larger than the sum of its proper divisors (1).

131022403 is an equidigital number, since it uses as much as digits as its factorization.

131022403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 131022403 is about 11446.5017800200. The cubic root of 131022403 is about 507.9042576402.

Adding to 131022403 its reverse (304220131), we get a palindrome (435242534).

The spelling of 131022403 in words is "one hundred thirty-one million, twenty-two thousand, four hundred three".