31818966102 has 120 divisors (see below), whose sum is σ = 89564883408. Its totient is φ = 8264630880.

The previous prime is 31818966041. The next prime is 31818966121. The reversal of 31818966102 is 20166981813.

31818966102 is a `hidden beast` number, since 3 + 18 + 18 + 9 + 6 + 610 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 21268 + ... + 253160.

Almost surely, 2^31818966102 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31818966102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44782441704).

31818966102 is an abundant number, since it is smaller than the sum of its proper divisors (57745917306).

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

31818966102 is a wasteful number, since it uses less digits than its factorization.

31818966102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231936 (or 231916 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The spelling of 31818966102 in words is "thirty-one billion, eight hundred eighteen million, nine hundred sixty-six thousand, one hundred two".