31110221134002 has 32 divisors (see below), whose sum is σ = 65009670933888. Its totient is φ = 9906368823296.

The previous prime is 31110221133989. The next prime is 31110221134033. The reversal of 31110221134002 is 20043112201113.

It is a self number, because there is not a number n which added to its sum of digits gives 31110221134002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145712463 + ... + 145925810.

It is an arithmetic number, because the mean of its divisors is an integer number (2031552216684).

Almost surely, 2^{31110221134002} is an apocalyptic number.

31110221134002 is an abundant number, since it is smaller than the sum of its proper divisors (33899449799886).

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

31110221134002 is a wasteful number, since it uses less digits than its factorization.

31110221134002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291639074.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 31110221134002 its reverse (20043112201113), we get a palindrome (51153333335115).

The spelling of 31110221134002 in words is "thirty-one trillion, one hundred ten billion, two hundred twenty-one million, one hundred thirty-four thousand, two".