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1213401144313 = 12715760855667
BaseRepresentation
bin10001101010000100010…
…110000001101111111001
311022000000000022202222201
4101222010112001233321
5124340021143104223
62325232341350201
7153444132356431
oct21520426015771
94260000282881
101213401144313
11428667349176
121771b9708361
138a566b0bab7
1442a2c2752c1
152186b479ead
hex11a84581bf9

1213401144313 has 8 divisors (see below), whose sum is σ = 1230745029632. Its totient is φ = 1196178970896.

The previous prime is 1213401144311. The next prime is 1213401144349. The reversal of 1213401144313 is 3134411043121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213401144313 - 21 = 1213401144311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213401144311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30407895 + ... + 30447772.

It is an arithmetic number, because the mean of its divisors is an integer number (153843128704).

Almost surely, 21213401144313 is an apocalyptic number.

It is an amenable number.

1213401144313 is a deficient number, since it is larger than the sum of its proper divisors (17343885319).

1213401144313 is a wasteful number, since it uses less digits than its factorization.

1213401144313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60855951.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 1213401144313 its reverse (3134411043121), we get a palindrome (4347812187434).

The spelling of 1213401144313 in words is "one trillion, two hundred thirteen billion, four hundred one million, one hundred forty-four thousand, three hundred thirteen".

Divisors: 1 127 157 19939 60855667 7728669709 9554339719 1213401144313