131003423 has 16 divisors (see below), whose sum is σ = 146361600. Its totient is φ = 116677440.

The previous prime is 131003419. The next prime is 131003441. The reversal of 131003423 is 324300131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131003423 - 2² = 131003419 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131003473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23243 + ... + 28323.

It is an arithmetic number, because the mean of its divisors is an integer number (9147600).

Almost surely, 2^131003423 is an apocalyptic number.

131003423 is a deficient number, since it is larger than the sum of its proper divisors (15358177).

131003423 is a wasteful number, since it uses less digits than its factorization.

131003423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5182.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 131003423 is about 11445.6726757321. The cubic root of 131003423 is about 507.8797313299.

Adding to 131003423 its reverse (324300131), we get a palindrome (455303554).

The spelling of 131003423 in words is "one hundred thirty-one million, three thousand, four hundred twenty-three".