131110030031 has 4 divisors (see below), whose sum is σ = 131447074200. Its totient is φ = 130772985864.

The previous prime is 131110030027. The next prime is 131110030091. The reversal of 131110030031 is 130030011131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130030011131 = 38747 ⋅3355873.

It is a cyclic number.

It is not a de Polignac number, because 131110030031 - 2² = 131110030027 is a prime.

It is a super-2 number, since 2×131110030031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131110029988 and 131110030015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131110030091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168521501 + ... + 168522278.

It is an arithmetic number, because the mean of its divisors is an integer number (32861768550).

Almost surely, 2^131110030031 is an apocalyptic number.

131110030031 is a deficient number, since it is larger than the sum of its proper divisors (337044169).

131110030031 is an equidigital number, since it uses as much as digits as its factorization.

131110030031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337044168.

The product of its (nonzero) digits is 27, while the sum is 14.

Adding to 131110030031 its reverse (130030011131), we get a palindrome (261140041162).

The spelling of 131110030031 in words is "one hundred thirty-one billion, one hundred ten million, thirty thousand, thirty-one".