31103022232212 has 48 divisors (see below), whose sum is σ = 86547540129792. Its totient is φ = 8500204833120.

The previous prime is 31103022232193. The next prime is 31103022232253. The reversal of 31103022232212 is 21223222030113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8049434464 + ... + 8049438327.

It is an arithmetic number, because the mean of its divisors is an integer number (1803073752704).

Almost surely, 2^{31103022232212} is an apocalyptic number.

It is an amenable number.

31103022232212 is an abundant number, since it is smaller than the sum of its proper divisors (55444517897580).

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

31103022232212 is a wasteful number, since it uses less digits than its factorization.

31103022232212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16098872828 (or 16098872826 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 31103022232212 its reverse (21223222030113), we get a palindrome (52326244262325).

The spelling of 31103022232212 in words is "thirty-one trillion, one hundred three billion, twenty-two million, two hundred thirty-two thousand, two hundred twelve".