31204320122 has 8 divisors (see below), whose sum is σ = 49269979200. Its totient is φ = 14780993724.

The previous prime is 31204320089. The next prime is 31204320149. The reversal of 31204320122 is 22102340213.

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 = 31204320094 and 31204320103.

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 in 3 ways as a sum of consecutive naturals, for example, 410583122 + ... + 410583197.

It is an arithmetic number, because the mean of its divisors is an integer number (6158747400).

Almost surely, 2^31204320122 is an apocalyptic number.

31204320122 is a deficient number, since it is larger than the sum of its proper divisors (18065659078).

31204320122 is a wasteful number, since it uses less digits than its factorization.

31204320122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821166340.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31204320122 its reverse (22102340213), we get a palindrome (53306660335).

The spelling of 31204320122 in words is "thirty-one billion, two hundred four million, three hundred twenty thousand, one hundred twenty-two".