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121214323230 = 2357111337127859
BaseRepresentation
bin111000011100011101…
…1111100101000011110
3102120212122010121210220
41300320323330220132
53441221331320410
6131403551342210
711520542514240
oct1607073745036
9376778117726
10121214323230
1147452364140
121b5aa521966
13b579955120
145c1c724090
1532468c0070
hex1c38efca1e

121214323230 has 512 divisors, whose sum is σ = 404784414720. Its totient is φ = 22417274880.

The previous prime is 121214323211. The next prime is 121214323271. The reversal of 121214323230 is 32323412121.

It is a super-2 number, since 2×1212143232302 (a number of 23 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 121214323230.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 141110541 + ... + 141111399.

It is an arithmetic number, because the mean of its divisors is an integer number (790594560).

Almost surely, 2121214323230 is an apocalyptic number.

121214323230 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 121214323230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (202392207360).

121214323230 is an abundant number, since it is smaller than the sum of its proper divisors (283570091490).

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

121214323230 is a wasteful number, since it uses less digits than its factorization.

121214323230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121214323230 its reverse (32323412121), we get a palindrome (153537735351).

It can be divided in two parts, 121214 and 323230, that added together give a palindrome (444444).

The spelling of 121214323230 in words is "one hundred twenty-one billion, two hundred fourteen million, three hundred twenty-three thousand, two hundred thirty".