31100031223102 has 8 divisors (see below), whose sum is σ = 47289088572336. Its totient is φ = 15337001698992.

The previous prime is 31100031223061. The next prime is 31100031223109. The reversal of 31100031223102 is 20132213000113.

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

It is a super-5 number, since 5×31100031223102⁵ (a number of 69 digits) contains 55555 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31100031223102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100031223109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106506956098 + ... + 106506956389.

It is an arithmetic number, because the mean of its divisors is an integer number (5911136071542).

Almost surely, 2^{31100031223102} is an apocalyptic number.

31100031223102 is a deficient number, since it is larger than the sum of its proper divisors (16189057349234).

31100031223102 is a wasteful number, since it uses less digits than its factorization.

31100031223102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213013912562.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31100031223102 its reverse (20132213000113), we get a palindrome (51232244223215).

The spelling of 31100031223102 in words is "thirty-one trillion, one hundred billion, thirty-one million, two hundred twenty-three thousand, one hundred two".