131000004031 has 8 divisors (see below), whose sum is σ = 141084889904. Its totient is φ = 120916255680.

The previous prime is 131000003977. The next prime is 131000004071. The reversal of 131000004031 is 130400000131.

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 131000004031 - 2¹¹ = 131000001983 is a prime.

It is a super-2 number, since 2×131000004031² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000004071) 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, 37230 + ... + 513211.

It is an arithmetic number, because the mean of its divisors is an integer number (17635611238).

Almost surely, 2^131000004031 is an apocalyptic number.

131000004031 is a deficient number, since it is larger than the sum of its proper divisors (10084885873).

131000004031 is a wasteful number, since it uses less digits than its factorization.

131000004031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568761.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 131000004031 its reverse (130400000131), we get a palindrome (261400004162).

The spelling of 131000004031 in words is "one hundred thirty-one billion, four thousand, thirty-one".