3131310121441 has 4 divisors (see below), whose sum is σ = 3131354356884. Its totient is φ = 3131265886000.

The previous prime is 3131310121411. The next prime is 3131310121451. The reversal of 3131310121441 is 1441210131313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3043158136225 + 88151985216 = 1744465^2 + 296904^2 .

It is a cyclic number.

It is not a de Polignac number, because 3131310121441 - 2¹³ = 3131310113249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3131310121411) 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, 22011370 + ... + 22153171.

It is an arithmetic number, because the mean of its divisors is an integer number (782838589221).

Almost surely, 2^{3131310121441} is an apocalyptic number.

It is an amenable number.

3131310121441 is a deficient number, since it is larger than the sum of its proper divisors (44235443).

3131310121441 is an equidigital number, since it uses as much as digits as its factorization.

3131310121441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44235442.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 3131310121441 its reverse (1441210131313), we get a palindrome (4572520252754).

The spelling of 3131310121441 in words is "three trillion, one hundred thirty-one billion, three hundred ten million, one hundred twenty-one thousand, four hundred forty-one".