31432124421305 has 4 divisors (see below), whose sum is σ = 37718549305572. Its totient is φ = 25145699537040.

The previous prime is 31432124421293. The next prime is 31432124421329. The reversal of 31432124421305 is 50312442123413.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4035389933584 + 27396734487721 = 2008828^2 + 5234189^2 .

It is not a de Polignac number, because 31432124421305 - 2²⁴ = 31432107644089 is a prime.

It is a super-2 number, since 2×31432124421305² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3143212442126 + ... + 3143212442135.

It is an arithmetic number, because the mean of its divisors is an integer number (9429637326393).

Almost surely, 2^{31432124421305} is an apocalyptic number.

It is an amenable number.

31432124421305 is a deficient number, since it is larger than the sum of its proper divisors (6286424884267).

31432124421305 is an equidigital number, since it uses as much as digits as its factorization.

31432124421305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6286424884266.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 31432124421305 its reverse (50312442123413), we get a palindrome (81744566544718).

The spelling of 31432124421305 in words is "thirty-one trillion, four hundred thirty-two billion, one hundred twenty-four million, four hundred twenty-one thousand, three hundred five".