31321545322 has 4 divisors (see below), whose sum is σ = 46982317986. Its totient is φ = 15660772660.

The previous prime is 31321545257. The next prime is 31321545341. The reversal of 31321545322 is 22354512313.

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

It can be written as a sum of positive squares in only one way, i.e., 30085249401 + 1236295921 = 173451^2 + 35161^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7830386329 + ... + 7830386332.

Almost surely, 2^31321545322 is an apocalyptic number.

31321545322 is a deficient number, since it is larger than the sum of its proper divisors (15660772664).

31321545322 is a wasteful number, since it uses less digits than its factorization.

31321545322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15660772663.

The product of its digits is 21600, while the sum is 31.

The spelling of 31321545322 in words is "thirty-one billion, three hundred twenty-one million, five hundred forty-five thousand, three hundred twenty-two".