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121120023230 = 25131571161923
BaseRepresentation
bin111000011001101010…
…0001110001010111110
3102120122001200200112022
41300303110032022332
53441023211220410
6131350342240142
711515316132153
oct1606324161276
9376561620468
10121120023230
1147404106158
121b582a26052
13b563258bcb
145c0ddb822a
15323d494455
hex1c3350e2be

121120023230 has 32 divisors (see below), whose sum is σ = 220066374528. Its totient is φ = 47993680800.

The previous prime is 121120023181. The next prime is 121120023259. The reversal of 121120023230 is 32320021121.

It is a junction number, because it is equal to n+sod(n) for n = 121120023199 and 121120023208.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 667049 + ... + 828971.

It is an arithmetic number, because the mean of its divisors is an integer number (6877074204).

Almost surely, 2121120023230 is an apocalyptic number.

121120023230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120023230 is a deficient number, since it is larger than the sum of its proper divisors (98946351298).

121120023230 is a wasteful number, since it uses less digits than its factorization.

121120023230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162632.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121120023230 its reverse (32320021121), we get a palindrome (153440044351).

The spelling of 121120023230 in words is "one hundred twenty-one billion, one hundred twenty million, twenty-three thousand, two hundred thirty".

Divisors: 1 2 5 10 131 262 571 655 1142 1310 2855 5710 74801 149602 161923 323846 374005 748010 809615 1619230 21211913 42423826 92458033 106059565 184916066 212119130 462290165 924580330 12112002323 24224004646 60560011615 121120023230