31323440003321 has 8 divisors (see below), whose sum is σ = 33170944828104. Its totient is φ = 29476485126400.

The previous prime is 31323440003309. The next prime is 31323440003327. The reversal of 31323440003321 is 12330004432313.

It can be written as a sum of positive squares in 4 ways, for example, as 18606834382096 + 12716605621225 = 4313564^2 + 3566035^2 .

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 31323440003321 - 2³⁰ = 31322366261497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31323440003327) 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, 137369690 + ... + 137597523.

It is an arithmetic number, because the mean of its divisors is an integer number (4146368103513).

Almost surely, 2^{31323440003321} is an apocalyptic number.

It is an amenable number.

31323440003321 is a deficient number, since it is larger than the sum of its proper divisors (1847504824783).

31323440003321 is a wasteful number, since it uses less digits than its factorization.

31323440003321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274973931.

The product of its (nonzero) digits is 15552, while the sum is 29.

Adding to 31323440003321 its reverse (12330004432313), we get a palindrome (43653444435634).

The spelling of 31323440003321 in words is "thirty-one trillion, three hundred twenty-three billion, four hundred forty million, three thousand, three hundred twenty-one".