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1323103030420 = 22541239354641
BaseRepresentation
bin10011010000001111000…
…101100000110010010100
311200111011022202222222111
4103100033011200302110
5133134203333433140
62451454121440404
7164406504124243
oct23201705406224
94614138688874
101323103030420
11470141192966
12194514640104
13979ca61b542
1448077a1695a
152463c2d77ea
hex1340f160c94

1323103030420 has 36 divisors (see below), whose sum is σ = 2847938022972. Its totient is φ = 516332876800.

The previous prime is 1323103030349. The next prime is 1323103030471. The reversal of 1323103030420 is 240303013231.

It can be written as a sum of positive squares in 6 ways, for example, as 953696777476 + 369406252944 = 976574^2 + 607788^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1323103030391 and 1323103030400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19643701 + ... + 19710940.

It is an arithmetic number, because the mean of its divisors is an integer number (79109389527).

Almost surely, 21323103030420 is an apocalyptic number.

1323103030420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323103030420 is an abundant number, since it is smaller than the sum of its proper divisors (1524834992552).

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

1323103030420 is a wasteful number, since it uses less digits than its factorization.

1323103030420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39354732 (or 39354689 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1323103030420 its reverse (240303013231), we get a palindrome (1563406043651).

The spelling of 1323103030420 in words is "one trillion, three hundred twenty-three billion, one hundred three million, thirty thousand, four hundred twenty".

Divisors: 1 2 4 5 10 20 41 82 164 205 410 820 1681 3362 6724 8405 16810 33620 39354641 78709282 157418564 196773205 393546410 787092820 1613540281 3227080562 6454161124 8067701405 16135402810 32270805620 66155151521 132310303042 264620606084 330775757605 661551515210 1323103030420