131403031 has 8 divisors (see below), whose sum is σ = 143089200. Its totient is φ = 120193920.

The previous prime is 131403011. The next prime is 131403049. The reversal of 131403031 is 130304131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131403031 - 2⁷ = 131402903 is a prime.

It is a super-2 number, since 2×131403031² = 34533513111973922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131402996 and 131403014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131403011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118690 + ... + 119791.

It is an arithmetic number, because the mean of its divisors is an integer number (17886150).

Almost surely, 2^131403031 is an apocalyptic number.

131403031 is a deficient number, since it is larger than the sum of its proper divisors (11686169).

131403031 is a wasteful number, since it uses less digits than its factorization.

131403031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 238529.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 131403031 is about 11463.1161121224. The cubic root of 131403031 is about 508.3956129970.

Adding to 131403031 its reverse (130304131), we get a palindrome (261707162).

The spelling of 131403031 in words is "one hundred thirty-one million, four hundred three thousand, thirty-one".