31102302212 has 24 divisors (see below), whose sum is σ = 55145583360. Its totient is φ = 15346618560.

The previous prime is 31102302199. The next prime is 31102302229. The reversal of 31102302212 is 21220320113.

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 7 ways as a sum of consecutive naturals, for example, 635912 + ... + 683072.

It is an arithmetic number, because the mean of its divisors is an integer number (2297732640).

Almost surely, 2^31102302212 is an apocalyptic number.

It is an amenable number.

31102302212 is a deficient number, since it is larger than the sum of its proper divisors (24043281148).

31102302212 is a wasteful number, since it uses less digits than its factorization.

31102302212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49331 (or 49329 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 31102302212 its reverse (21220320113), we get a palindrome (52322622325).

The spelling of 31102302212 in words is "thirty-one billion, one hundred two million, three hundred two thousand, two hundred twelve".