102123331110 has 96 divisors (see below), whose sum is σ = 273205775232. Its totient is φ = 26447420160.

The previous prime is 102123331099. The next prime is 102123331117. The reversal of 102123331110 is 11133321201.

102123331110 is a `hidden beast` number, since 10 + 212 + 3 + 331 + 110 = 666.

It is a super-4 number, since 4×102123331110⁴ (a number of 45 digits) contains 4444 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 (102123331117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1773187 + ... + 1829873.

It is an arithmetic number, because the mean of its divisors is an integer number (2845893492).

Almost surely, 2^102123331110 is an apocalyptic number.

102123331110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 102123331110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (136602887616).

102123331110 is an abundant number, since it is smaller than the sum of its proper divisors (171082444122).

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

102123331110 is a wasteful number, since it uses less digits than its factorization.

102123331110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57278 (or 57275 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 102123331110 its reverse (11133321201), we get a palindrome (113256652311).

Subtracting from 102123331110 its reverse (11133321201), we obtain a palindrome (90990009909).

The spelling of 102123331110 in words is "one hundred two billion, one hundred twenty-three million, three hundred thirty-one thousand, one hundred ten".