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1213124020330 = 2517229891031579
BaseRepresentation
bin10001101001110011110…
…100111000100001101010
311021222021200212102100111
4101221303310320201222
5124333434222122310
62325145041524534
7153434226014665
oct21516364704152
94258250772314
101213124020330
11428534979892
1217714094374a
138a521590501
1442a035386dc
1521851e8928a
hex11a73d3886a

1213124020330 has 192 divisors, whose sum is σ = 2451687264000. Its totient is φ = 431495995392.

The previous prime is 1213124020321. The next prime is 1213124020337. The reversal of 1213124020330 is 330204213121.

It is not an unprimeable number, because it can be changed into a prime (1213124020337) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 768285481 + ... + 768287059.

It is an arithmetic number, because the mean of its divisors is an integer number (12769204500).

Almost surely, 21213124020330 is an apocalyptic number.

1213124020330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213124020330 is an abundant number, since it is smaller than the sum of its proper divisors (1238563243670).

1213124020330 is a wasteful number, since it uses less digits than its factorization.

1213124020330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1841 (or 1824 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1213124020330 its reverse (330204213121), we get a palindrome (1543328233451).

The spelling of 1213124020330 in words is "one trillion, two hundred thirteen billion, one hundred twenty-four million, twenty thousand, three hundred thirty".