31101313141 has 4 divisors (see below), whose sum is σ = 31109051884. Its totient is φ = 31093574400.

The previous prime is 31101313127. The next prime is 31101313151. The reversal of 31101313141 is 14131310113.

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: 14131310113 = 137 ⋅103148249.

It can be written as a sum of positive squares in 2 ways, for example, as 3728934225 + 27372378916 = 61065^2 + 165446^2 .

It is a cyclic number.

It is not a de Polignac number, because 31101313141 - 2⁵ = 31101313109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31101313151) 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, 3863340 + ... + 3871381.

It is an arithmetic number, because the mean of its divisors is an integer number (7777262971).

Almost surely, 2^31101313141 is an apocalyptic number.

It is an amenable number.

31101313141 is a deficient number, since it is larger than the sum of its proper divisors (7738743).

31101313141 is an equidigital number, since it uses as much as digits as its factorization.

31101313141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7738742.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 31101313141 its reverse (14131310113), we get a palindrome (45232623254).

The spelling of 31101313141 in words is "thirty-one billion, one hundred one million, three hundred thirteen thousand, one hundred forty-one".