31112320322 has 8 divisors (see below), whose sum is σ = 46681974972. Its totient is φ = 15551662000.

The previous prime is 31112320307. The next prime is 31112320367. The reversal of 31112320322 is 22302321113.

It can be written as a sum of positive squares in 2 ways, for example, as 25281318001 + 5831002321 = 159001^2 + 76361^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 31112320294 and 31112320303.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2240429 + ... + 2254272.

Almost surely, 2^31112320322 is an apocalyptic number.

31112320322 is a deficient number, since it is larger than the sum of its proper divisors (15569654650).

31112320322 is a wasteful number, since it uses less digits than its factorization.

31112320322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4498164.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 31112320322 its reverse (22302321113), we get a palindrome (53414641435).

The spelling of 31112320322 in words is "thirty-one billion, one hundred twelve million, three hundred twenty thousand, three hundred twenty-two".