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1212143343130 = 25121214334313
BaseRepresentation
bin10001101000111001010…
…111111001011000011010
311021212202100112212010201
4101220321113321120122
5124324432143440010
62324503450332414
7153401020262536
oct21507127713032
94255670485121
101212143343130
11428081353565
12176b0842a10a
138a3c635a445
144294d1babc6
15217e5d2323a
hex11a395f961a

1212143343130 has 8 divisors (see below), whose sum is σ = 2181858017652. Its totient is φ = 484857337248.

The previous prime is 1212143343127. The next prime is 1212143343137. The reversal of 1212143343130 is 313433412121.

It can be written as a sum of positive squares in 2 ways, for example, as 1152709291449 + 59434051681 = 1073643^2 + 243791^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1212143343137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60607167147 + ... + 60607167166.

Almost surely, 21212143343130 is an apocalyptic number.

1212143343130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1212143343130 is a deficient number, since it is larger than the sum of its proper divisors (969714674522).

1212143343130 is a wasteful number, since it uses less digits than its factorization.

1212143343130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121214334320.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1212143343130 its reverse (313433412121), we get a palindrome (1525576755251).

The spelling of 1212143343130 in words is "one trillion, two hundred twelve billion, one hundred forty-three million, three hundred forty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 121214334313 242428668626 606071671565 1212143343130