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120311131111230 = 23518122156746061
BaseRepresentation
bin11011010110110000011110…
…001110110111111100111110
3120202222122001120212002201110
4123112300132032313330332
5111232134144031024410
61103514100504222450
734225122662042043
oct3326603616677476
9522878046762643
10120311131111230
113537573400a094
12115b112a46aa26
1352193a239a417
14219d1386511ca
15dd987e151720
hex6d6c1e3b7f3e

120311131111230 has 32 divisors (see below), whose sum is σ = 290342000396448. Its totient is φ = 31905714326400.

The previous prime is 120311131111169. The next prime is 120311131111277. The reversal of 120311131111230 is 32111131113021.

It is a super-2 number, since 2×1203111311112302 (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120311131111197 and 120311131111206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11078367601 + ... + 11078378460.

It is an arithmetic number, because the mean of its divisors is an integer number (9073187512389).

Almost surely, 2120311131111230 is an apocalyptic number.

120311131111230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

120311131111230 is an abundant number, since it is smaller than the sum of its proper divisors (170030869285218).

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

120311131111230 is a wasteful number, since it uses less digits than its factorization.

120311131111230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22156746252.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 120311131111230 its reverse (32111131113021), we get a palindrome (152422262224251).

The spelling of 120311131111230 in words is "one hundred twenty trillion, three hundred eleven billion, one hundred thirty-one million, one hundred eleven thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 181 362 543 905 1086 1810 2715 5430 22156746061 44313492122 66470238183 110783730305 132940476366 221567460610 332351190915 664702381830 4010371037041 8020742074082 12031113111123 20051855185205 24062226222246 40103710370410 60155565555615 120311131111230