31320440030041 has 4 divisors (see below), whose sum is σ = 31320502164900. Its totient is φ = 31320377895184.

The previous prime is 31320440029943. The next prime is 31320440030051. The reversal of 31320440030041 is 14003004402313.

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 27806596054416 + 3513843975625 = 5273196^2 + 1874525^2 .

It is a cyclic number.

It is not a de Polignac number, because 31320440030041 - 2¹¹ = 31320440027993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31320440029988 and 31320440030015.

It is not an unprimeable number, because it can be changed into a prime (31320440030051) 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, 30305086 + ... + 31321543.

It is an arithmetic number, because the mean of its divisors is an integer number (7830125541225).

Almost surely, 2^{31320440030041} is an apocalyptic number.

It is an amenable number.

31320440030041 is a deficient number, since it is larger than the sum of its proper divisors (62134859).

31320440030041 is an equidigital number, since it uses as much as digits as its factorization.

31320440030041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62134858.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 31320440030041 its reverse (14003004402313), we get a palindrome (45323444432354).

The spelling of 31320440030041 in words is "thirty-one trillion, three hundred twenty billion, four hundred forty million, thirty thousand, forty-one".