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311201119999 = 71130671317761
BaseRepresentation
bin1001000011101010000…
…10000011111011111111
31002202021010210212202101
410201311002003323333
520044314441314444
6354544104005531
731324565606020
oct4416502037377
91082233725671
10311201119999
1110aa85a12570
12503907608a7
1323466613273
14110c2a06c47
158165c293d4
hex4875083eff

311201119999 has 16 divisors (see below), whose sum is σ = 388117806336. Its totient is φ = 242415129600.

The previous prime is 311201119973. The next prime is 311201120011. The reversal of 311201119999 is 999911102113.

It is not a de Polignac number, because 311201119999 - 25 = 311201119967 is a prime.

It is a super-2 number, since 2×3112011199992 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311201119939) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 422722 + ... + 895039.

It is an arithmetic number, because the mean of its divisors is an integer number (24257362896).

Almost surely, 2311201119999 is an apocalyptic number.

311201119999 is a deficient number, since it is larger than the sum of its proper divisors (76916686337).

311201119999 is a wasteful number, since it uses less digits than its factorization.

311201119999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1320846.

The product of its (nonzero) digits is 39366, while the sum is 46.

The spelling of 311201119999 in words is "three hundred eleven billion, two hundred one million, one hundred nineteen thousand, nine hundred ninety-nine".

Divisors: 1 7 11 77 3067 21469 33737 236159 1317761 9224327 14495371 101467597 4041572987 28291010909 44457302857 311201119999