131032031 has 4 divisors (see below), whose sum is σ = 141111432. Its totient is φ = 120952632.

The previous prime is 131031997. The next prime is 131032067. The reversal of 131032031 is 130230131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130230131 = 487 ⋅267413.

It is a cyclic number.

It is not a de Polignac number, because 131032031 - 2¹⁰ = 131031007 is a prime.

It is a super-2 number, since 2×131032031² = 34338786295969922, 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 = 131031997 and 131032015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131032091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5039681 + ... + 5039706.

It is an arithmetic number, because the mean of its divisors is an integer number (35277858).

Almost surely, 2^131032031 is an apocalyptic number.

131032031 is a deficient number, since it is larger than the sum of its proper divisors (10079401).

131032031 is a wasteful number, since it uses less digits than its factorization.

131032031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10079400.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 131032031 is about 11446.9223374670. The cubic root of 131032031 is about 507.9166982160.

Adding to 131032031 its reverse (130230131), we get a palindrome (261262162).

The spelling of 131032031 in words is "one hundred thirty-one million, thirty-two thousand, thirty-one".