31251345134041 has 8 divisors (see below), whose sum is σ = 32938958438280. Its totient is φ = 29604397210752.

The previous prime is 31251345134039. The next prime is 31251345134077. The reversal of 31251345134041 is 14043154315213.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8120054884041 + 23131290250000 = 2849571^2 + 4809500^2 .

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 31251345134041 - 2¹ = 31251345134039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31251345137041) 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, 10166343660 + ... + 10166346733.

It is an arithmetic number, because the mean of its divisors is an integer number (4117369804785).

Almost surely, 2^{31251345134041} is an apocalyptic number.

It is an amenable number.

31251345134041 is a deficient number, since it is larger than the sum of its proper divisors (1687613304239).

31251345134041 is a wasteful number, since it uses less digits than its factorization.

31251345134041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20332690475.

The product of its (nonzero) digits is 86400, while the sum is 37.

Adding to 31251345134041 its reverse (14043154315213), we get a palindrome (45294499449254).

The spelling of 31251345134041 in words is "thirty-one trillion, two hundred fifty-one billion, three hundred forty-five million, one hundred thirty-four thousand, forty-one".