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1303200231312 = 243731747157631
BaseRepresentation
bin10010111101101100110…
…010010110111110010000
311121120210021011001021210
4102331230302112332100
5132322423224400222
62434403143420120
7163103342124000
oct22755462267620
94546707131253
101303200231312
11462758613361
1219069b154640
1395b78117335
144710a5d4000
1523d74d6bd0c
hex12f6cc96f90

1303200231312 has 640 divisors, whose sum is σ = 4279268966400. Its totient is φ = 340259512320.

The previous prime is 1303200231271. The next prime is 1303200231313. The reversal of 1303200231312 is 2131320023031.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (1303200231313) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2065293237 + ... + 2065293867.

It is an arithmetic number, because the mean of its divisors is an integer number (6686357760).

Almost surely, 21303200231312 is an apocalyptic number.

1303200231312 is a gapful number since it is divisible by the number (12) 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 1303200231312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2139634483200).

1303200231312 is an abundant number, since it is smaller than the sum of its proper divisors (2976068735088).

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

1303200231312 is a wasteful number, since it uses less digits than its factorization.

1303200231312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 884 (or 864 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1303200231312 its reverse (2131320023031), we get a palindrome (3434520254343).

The spelling of 1303200231312 in words is "one trillion, three hundred three billion, two hundred million, two hundred thirty-one thousand, three hundred twelve".