31321103441 has 8 divisors (see below), whose sum is σ = 31556701224. Its totient is φ = 31085607040.

The previous prime is 31321103423. The next prime is 31321103453. The reversal of 31321103441 is 14430112313.

It can be written as a sum of positive squares in 4 ways, for example, as 12130819600 + 19190283841 = 110140^2 + 138529^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31321103441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31321106441) 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, 665111 + ... + 710643.

It is an arithmetic number, because the mean of its divisors is an integer number (3944587653).

Almost surely, 2^31321103441 is an apocalyptic number.

It is an amenable number.

31321103441 is a deficient number, since it is larger than the sum of its proper divisors (235597783).

31321103441 is a wasteful number, since it uses less digits than its factorization.

31321103441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50691.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31321103441 its reverse (14430112313), we get a palindrome (45751215754).

The spelling of 31321103441 in words is "thirty-one billion, three hundred twenty-one million, one hundred three thousand, four hundred forty-one".