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11212310031210 = 232519131157931699
BaseRepresentation
bin1010001100101001000111…
…0000011010101101101010
31110200212221011102202000200
42203022101300122231222
52432200302331444320
635502510352213030
72235030331523211
oct243122160325552
943625834382020
1011212310031210
113633128787822
12131102bb3a176
13634415ba8662
142aa9704da078
151469d06e0290
hexa3291c1ab6a

11212310031210 has 192 divisors, whose sum is σ = 30941127360000. Its totient is φ = 2809091975040.

The previous prime is 11212310031193. The next prime is 11212310031233. The reversal of 11212310031210 is 1213001321211.

11212310031210 is a `hidden beast` number, since 1 + 121 + 231 + 0 + 0 + 312 + 1 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 353695941 + ... + 353727639.

It is an arithmetic number, because the mean of its divisors is an integer number (161151705000).

Almost surely, 211212310031210 is an apocalyptic number.

11212310031210 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 11212310031210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15470563680000).

11212310031210 is an abundant number, since it is smaller than the sum of its proper divisors (19728817328790).

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

11212310031210 is a wasteful number, since it uses less digits than its factorization.

11212310031210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33441 (or 33438 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11212310031210 its reverse (1213001321211), we get a palindrome (12425311352421).

The spelling of 11212310031210 in words is "eleven trillion, two hundred twelve billion, three hundred ten million, thirty-one thousand, two hundred ten".