31315230341 has 16 divisors (see below), whose sum is σ = 34311360240. Its totient is φ = 28447964160.

The previous prime is 31315230329. The next prime is 31315230347. The reversal of 31315230341 is 14303251313.

It can be written as a sum of positive squares in 8 ways, for example, as 2512225 + 31312718116 = 1585^2 + 176954^2 .

It is a cyclic number.

It is not a de Polignac number, because 31315230341 - 2¹⁰ = 31315229317 is a prime.

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 31315230341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31315230347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1974455 + ... + 1990251.

It is an arithmetic number, because the mean of its divisors is an integer number (2144460015).

Almost surely, 2^31315230341 is an apocalyptic number.

It is an amenable number.

31315230341 is a deficient number, since it is larger than the sum of its proper divisors (2996129899).

31315230341 is a wasteful number, since it uses less digits than its factorization.

31315230341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19864.

The product of its (nonzero) digits is 3240, while the sum is 26.

Adding to 31315230341 its reverse (14303251313), we get a palindrome (45618481654).

The spelling of 31315230341 in words is "thirty-one billion, three hundred fifteen million, two hundred thirty thousand, three hundred forty-one".