231012220002102 has 512 divisors, whose sum is σ = 675025185669120. Its totient is φ = 56807847936000.

The previous prime is 231012220002089. The next prime is 231012220002167. The reversal of 231012220002102 is 201200022210132.

231012220002102 is a `hidden beast` number, since 2 + 310 + 122 + 20 + 0 + 0 + 210 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 17187123702 + ... + 17187137142.

It is an arithmetic number, because the mean of its divisors is an integer number (1318408565760).

Almost surely, 2^{231012220002102} is an apocalyptic number.

231012220002102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 231012220002102, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (337512592834560).

231012220002102 is an abundant number, since it is smaller than the sum of its proper divisors (444012965667018).

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

231012220002102 is a wasteful number, since it uses less digits than its factorization.

231012220002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16385 (or 16379 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 231012220002102 its reverse (201200022210132), we get a palindrome (432212242212234).

The spelling of 231012220002102 in words is "two hundred thirty-one trillion, twelve billion, two hundred twenty million, two thousand, one hundred two".