131000371831 has 8 divisors (see below), whose sum is σ = 149730660864. Its totient is φ = 112274070360.

The previous prime is 131000371807. The next prime is 131000371849. The reversal of 131000371831 is 138173000131.

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 131000371831 - 2⁹ = 131000371319 is a prime.

It is a super-2 number, since 2×131000371831² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131000371831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000371871) 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, 926155 + ... + 1058188.

It is an arithmetic number, because the mean of its divisors is an integer number (18716332608).

Almost surely, 2^131000371831 is an apocalyptic number.

131000371831 is a deficient number, since it is larger than the sum of its proper divisors (18730289033).

131000371831 is an equidigital number, since it uses as much as digits as its factorization.

131000371831 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1993781.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 131000371831 its reverse (138173000131), we get a palindrome (269173371962).

The spelling of 131000371831 in words is "one hundred thirty-one billion, three hundred seventy-one thousand, eight hundred thirty-one".