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102121101102 = 2323740007979
BaseRepresentation
bin101111100011011100…
…1000101011100101110
3100202120222212102221210
41133012321011130232
53133121000213402
6114525213335250
710243441015506
oct1370671053456
9322528772853
10102121101102
113a344776819
1217960197526
1398260a7c57
144d2aa40a06
1529ca56e06c
hex17c6e4572e

102121101102 has 16 divisors (see below), whose sum is σ = 213122298240. Its totient is φ = 32560351032.

The previous prime is 102121101101. The next prime is 102121101109. The reversal of 102121101102 is 201101121201.

It is a super-2 number, since 2×1021211011022 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102121101101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370003852 + ... + 370004127.

It is an arithmetic number, because the mean of its divisors is an integer number (13320143640).

Almost surely, 2102121101102 is an apocalyptic number.

102121101102 is an abundant number, since it is smaller than the sum of its proper divisors (111001197138).

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

102121101102 is a wasteful number, since it uses less digits than its factorization.

102121101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 740008007.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 102121101102 its reverse (201101121201), we get a palindrome (303222222303).

The spelling of 102121101102 in words is "one hundred two billion, one hundred twenty-one million, one hundred one thousand, one hundred two".

Divisors: 1 2 3 6 23 46 69 138 740007979 1480015958 2220023937 4440047874 17020183517 34040367034 51060550551 102121101102