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1312312003311 = 31393147031183
BaseRepresentation
bin10011000110001011111…
…001000000101011101111
311122110022021120000122210
4103012023321000223233
5133000103333101221
62442511240341503
7163545212656641
oct23061371005357
94573267500583
101312312003311
11466603a06541
12192402774893
139699aaa03ba
14477327c2891
1524209c76276
hex1318be40aef

1312312003311 has 8 divisors (see below), whose sum is σ = 1762337463040. Its totient is φ = 868580606232.

The previous prime is 1312312003273. The next prime is 1312312003337. The reversal of 1312312003311 is 1133002132131.

It is a happy number.

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

It is not a de Polignac number, because 1312312003311 - 211 = 1312312001263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312312003111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1573515175 + ... + 1573516008.

It is an arithmetic number, because the mean of its divisors is an integer number (220292182880).

Almost surely, 21312312003311 is an apocalyptic number.

1312312003311 is a deficient number, since it is larger than the sum of its proper divisors (450025459729).

1312312003311 is a wasteful number, since it uses less digits than its factorization.

1312312003311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3147031325.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1312312003311 its reverse (1133002132131), we get a palindrome (2445314135442).

The spelling of 1312312003311 in words is "one trillion, three hundred twelve billion, three hundred twelve million, three thousand, three hundred eleven".

Divisors: 1 3 139 417 3147031183 9441093549 437437334437 1312312003311