31102320212102 has 8 divisors (see below), whose sum is σ = 46653504002616. Its totient is φ = 15551152211232.

The previous prime is 31102320212087. The next prime is 31102320212147. The reversal of 31102320212102 is 20121202320113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×31102320212102² (a number of 28 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 5481758 + ... + 9604910.

It is an arithmetic number, because the mean of its divisors is an integer number (5831688000327).

Almost surely, 2^{31102320212102} is an apocalyptic number.

31102320212102 is a deficient number, since it is larger than the sum of its proper divisors (15551183790514).

31102320212102 is a wasteful number, since it uses less digits than its factorization.

31102320212102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7894822.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31102320212102 its reverse (20121202320113), we get a palindrome (51223522532215).

The spelling of 31102320212102 in words is "thirty-one trillion, one hundred two billion, three hundred twenty million, two hundred twelve thousand, one hundred two".