31332140013443 has 4 divisors (see below), whose sum is σ = 31340114601240. Its totient is φ = 31324165425648.

The previous prime is 31332140013403. The next prime is 31332140013487. The reversal of 31332140013443 is 34431004123313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31332140013443 - 2¹⁶ = 31332139947907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31332140013403) 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, 3987288005 + ... + 3987295862.

It is an arithmetic number, because the mean of its divisors is an integer number (7835028650310).

Almost surely, 2^{31332140013443} is an apocalyptic number.

31332140013443 is a deficient number, since it is larger than the sum of its proper divisors (7974587797).

31332140013443 is an equidigital number, since it uses as much as digits as its factorization.

31332140013443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7974587796.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 31332140013443 its reverse (34431004123313), we get a palindrome (65763144136756).

The spelling of 31332140013443 in words is "thirty-one trillion, three hundred thirty-two billion, one hundred forty million, thirteen thousand, four hundred forty-three".