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102123232120 = 235713216712923
BaseRepresentation
bin101111100011100000…
…1001101101101111000
3100202121010212201011101
41133013001031231320
53133122021411440
6114525331141144
710243465102420
oct1370701155570
9322533781141
10102123232120
113a3459a1898
1217960a447b4
139826672c00
144d2b037480
1529ca84069a
hex17c704db78

102123232120 has 192 divisors, whose sum is σ = 286081528320. Its totient is φ = 32124298752.

The previous prime is 102123232111. The next prime is 102123232163. The reversal of 102123232120 is 21232321201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7895979 + ... + 7908901.

It is an arithmetic number, because the mean of its divisors is an integer number (1490007960).

Almost surely, 2102123232120 is an apocalyptic number.

102123232120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102123232120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143040764160).

102123232120 is an abundant number, since it is smaller than the sum of its proper divisors (183958296200).

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

102123232120 is a wasteful number, since it uses less digits than its factorization.

102123232120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13134 (or 13117 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 102123232120 its reverse (21232321201), we get a palindrome (123355553321).

The spelling of 102123232120 in words is "one hundred two billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty".