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12203231321200 = 24524712735314479
BaseRepresentation
bin1011000110010100100101…
…0001001001110001110000
31121012121200011122220122211
42301211021101021301300
53044414204204234300
641542030450341504
72366440306520023
oct261451121116160
947177604586584
1012203231321200
1139853a7a41497
12145109958a894
136a69b52c5a2a
143028d4cbd1ba
15162679dcd4ba
hexb1949449c70

12203231321200 has 240 divisors, whose sum is σ = 30265400033280. Its totient is φ = 4726063964160.

The previous prime is 12203231321179. The next prime is 12203231321221. The reversal of 12203231321200 is 212313230221.

It is an interprime number because it is at equal distance from previous prime (12203231321179) and next prime (12203231321221).

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, 842815561 + ... + 842830039.

It is an arithmetic number, because the mean of its divisors is an integer number (126105833472).

Almost surely, 212203231321200 is an apocalyptic number.

12203231321200 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 12203231321200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15132700016640).

12203231321200 is an abundant number, since it is smaller than the sum of its proper divisors (18062168712080).

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

12203231321200 is a wasteful number, since it uses less digits than its factorization.

12203231321200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15024 (or 15013 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12203231321200 its reverse (212313230221), we get a palindrome (12415544551421).

The spelling of 12203231321200 in words is "twelve trillion, two hundred three billion, two hundred thirty-one million, three hundred twenty-one thousand, two hundred".