20320112310102 has 64 divisors (see below), whose sum is σ = 49271962060800. Its totient is φ = 6156224324640.

The previous prime is 20320112310041. The next prime is 20320112310107. The reversal of 20320112310102 is 20101321102302.

20320112310102 is a `hidden beast` number, since 2 + 0 + 320 + 11 + 231 + 0 + 102 = 666.

It is a super-2 number, since 2×20320112310102² (a number of 27 digits) contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20320112310107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1204777 + ... + 6487812.

It is an arithmetic number, because the mean of its divisors is an integer number (769874407200).

Almost surely, 2^{20320112310102} is an apocalyptic number.

20320112310102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20320112310102 is an abundant number, since it is smaller than the sum of its proper divisors (28951849750698).

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

20320112310102 is a wasteful number, since it uses less digits than its factorization.

20320112310102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7697058 (or 7697052 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20320112310102 its reverse (20101321102302), we get a palindrome (40421433412404).

The spelling of 20320112310102 in words is "twenty trillion, three hundred twenty billion, one hundred twelve million, three hundred ten thousand, one hundred two".