31443234413 has 4 divisors (see below), whose sum is σ = 31545655680. Its totient is φ = 31340813148.

The previous prime is 31443234379. The next prime is 31443234457.

31443234413 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 31443234413 - 2¹⁸ = 31442972269 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31443234413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31443234913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51210173 + ... + 51210786.

It is an arithmetic number, because the mean of its divisors is an integer number (7886413920).

Almost surely, 2^31443234413 is an apocalyptic number.

It is an amenable number.

31443234413 is a deficient number, since it is larger than the sum of its proper divisors (102421267).

31443234413 is a wasteful number, since it uses less digits than its factorization.

31443234413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102421266.

The product of its digits is 41472, while the sum is 32.

The spelling of 31443234413 in words is "thirty-one billion, four hundred forty-three million, two hundred thirty-four thousand, four hundred thirteen".