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1230120200304 = 243231717379673
BaseRepresentation
bin10001111001101000111…
…000001010100001110000
311100121011012011211011200
4101321220320022201300
5130123241232402204
62341035345011200
7154605345116052
oct21715070124160
94317135154150
101230120200304
11434766869416
1217a4a4923b00
138bccc846c38
14437769018d2
1521ee9159539
hex11e68e0a870

1230120200304 has 480 divisors, whose sum is σ = 3704837160960. Its totient is φ = 380414361600.

The previous prime is 1230120200291. The next prime is 1230120200321. The reversal of 1230120200304 is 4030020210321.

1230120200304 is a `hidden beast` number, since 12 + 30 + 120 + 200 + 304 = 666.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1827815712 + ... + 1827816384.

It is an arithmetic number, because the mean of its divisors is an integer number (7718410752).

Almost surely, 21230120200304 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 1230120200304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1852418580480).

1230120200304 is an abundant number, since it is smaller than the sum of its proper divisors (2474716960656).

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

1230120200304 is a wasteful number, since it uses less digits than its factorization.

1230120200304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941 (or 932 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 1230120200304 its reverse (4030020210321), we get a palindrome (5260140410625).

The spelling of 1230120200304 in words is "one trillion, two hundred thirty billion, one hundred twenty million, two hundred thousand, three hundred four".