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30111012131200 = 27527111324413851
BaseRepresentation
bin1101101100010110001000…
…01011101001000110000000
310221121120210012121022211221
412312023010023221012000
512421314323101144300
6144012450310244424
76225306644054410
oct666130413510600
9127546705538757
1030111012131200
11965a0103a0330
123463871056714
1313a55c1532c50
14761548b58640
153733cab9c31a
hex1b62c42e9180

30111012131200 has 768 divisors, whose sum is σ = 99938558522880. Its totient is φ = 8657510400000.

The previous prime is 30111012131183. The next prime is 30111012131231. The reversal of 30111012131200 is 213121011103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

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, 7819009275 + ... + 7819013125.

It is an arithmetic number, because the mean of its divisors is an integer number (130128331410).

Almost surely, 230111012131200 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30111012131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49969279261440).

30111012131200 is an abundant number, since it is smaller than the sum of its proper divisors (69827546391680).

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

30111012131200 is a wasteful number, since it uses less digits than its factorization.

30111012131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6347 (or 6330 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 30111012131200 its reverse (213121011103), we get a palindrome (30324133142303).

The spelling of 30111012131200 in words is "thirty trillion, one hundred eleven billion, twelve million, one hundred thirty-one thousand, two hundred".