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13321230120 = 233251117918793
BaseRepresentation
bin11000110100000000…
…11101011100101000
31021101101020121100100
430122000131130220
5204240213330440
610041504105400
7651053405412
oct143200353450
937341217310
1013321230120
11571653a3a0
1226b9305260
131343ac3ab3
149052a79b2
1552e756230
hex31a01d728

13321230120 has 192 divisors, whose sum is σ = 47496196800. Its totient is φ = 3211176960.

The previous prime is 13321230119. The next prime is 13321230133. The reversal of 13321230120 is 2103212331.

13321230120 is a `hidden beast` number, since 1 + 332 + 12 + 301 + 20 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 13321230093 and 13321230102.

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, 699444 + ... + 718236.

It is an arithmetic number, because the mean of its divisors is an integer number (247376025).

Almost surely, 213321230120 is an apocalyptic number.

13321230120 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 13321230120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23748098400).

13321230120 is an abundant number, since it is smaller than the sum of its proper divisors (34174966680).

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

13321230120 is a wasteful number, since it uses less digits than its factorization.

13321230120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19000 (or 18993 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13321230120 its reverse (2103212331), we get a palindrome (15424442451).

The spelling of 13321230120 in words is "thirteen billion, three hundred twenty-one million, two hundred thirty thousand, one hundred twenty".