31443344334413 has 4 divisors (see below), whose sum is σ = 34301830183008. Its totient is φ = 28584858485820.

The previous prime is 31443344334401. The next prime is 31443344334421.

31443344334413 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31443344334413 - 2³⁴ = 31426164465229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31443344334463) 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, 1429242924281 + ... + 1429242924302.

It is an arithmetic number, because the mean of its divisors is an integer number (8575457545752).

Almost surely, 2^{31443344334413} is an apocalyptic number.

It is an amenable number.

31443344334413 is a deficient number, since it is larger than the sum of its proper divisors (2858485848595).

31443344334413 is a wasteful number, since it uses less digits than its factorization.

31443344334413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2858485848594.

The product of its digits is 2985984, while the sum is 44.

It can be divided in two parts, 3144334 and 4334413, that added together give a palindrome (7478747).

The spelling of 31443344334413 in words is "thirty-one trillion, four hundred forty-three billion, three hundred forty-four million, three hundred thirty-four thousand, four hundred thirteen".