31321016346 has 16 divisors (see below), whose sum is σ = 64662743808. Its totient is φ = 10103553600.

The previous prime is 31321016339. The next prime is 31321016357. The reversal of 31321016346 is 64361012313.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84196095 + ... + 84196466.

It is an arithmetic number, because the mean of its divisors is an integer number (4041421488).

Almost surely, 2^31321016346 is an apocalyptic number.

31321016346 is an abundant number, since it is smaller than the sum of its proper divisors (33341727462).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31321016346 is a wasteful number, since it uses less digits than its factorization.

31321016346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168392597.

The product of its (nonzero) digits is 7776, while the sum is 30.

Adding to 31321016346 its reverse (64361012313), we get a palindrome (95682028659).

The spelling of 31321016346 in words is "thirty-one billion, three hundred twenty-one million, sixteen thousand, three hundred forty-six".