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311201112201 = 3714819100581
BaseRepresentation
bin1001000011101010000…
…10000010000010001001
31002202021010210111001120
410201311002002002021
520044314441042301
6354544103505453
731324565544210
oct4416502020211
91082233714046
10311201112201
1110aa85a07721
1250390758289
132346660c855
14110c2a04077
158165c26e36
hex4875082089

311201112201 has 8 divisors (see below), whose sum is σ = 474211218624. Its totient is φ = 177829206960.

The previous prime is 311201112161. The next prime is 311201112221. The reversal of 311201112201 is 102211102113.

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

It is not a de Polignac number, because 311201112201 - 26 = 311201112137 is a prime.

It is a super-2 number, since 2×3112011122012 (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311201112221) 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, 7409550270 + ... + 7409550311.

It is an arithmetic number, because the mean of its divisors is an integer number (59276402328).

Almost surely, 2311201112201 is an apocalyptic number.

It is an amenable number.

311201112201 is a deficient number, since it is larger than the sum of its proper divisors (163010106423).

311201112201 is a wasteful number, since it uses less digits than its factorization.

311201112201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14819100591.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 311201112201 its reverse (102211102113), we get a palindrome (413412214314).

The spelling of 311201112201 in words is "three hundred eleven billion, two hundred one million, one hundred twelve thousand, two hundred one".

Divisors: 1 3 7 21 14819100581 44457301743 103733704067 311201112201