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31204341311 = 1113218212177
BaseRepresentation
bin11101000011111011…
…000111011000111111
32222112200110210001212
4131003323013120333
51002401302410221
622200213155035
72153162345003
oct350373073077
988480423055
1031204341311
1112263045530
12606a32ba7b
132c33a495b0
141720388703
15c29720b5b
hex743ec763f

31204341311 has 8 divisors (see below), whose sum is σ = 36659645904. Its totient is φ = 26185461120.

The previous prime is 31204341299. The next prime is 31204341323. The reversal of 31204341311 is 11314340213.

It is an interprime number because it is at equal distance from previous prime (31204341299) and next prime (31204341323).

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

It is not a de Polignac number, because 31204341311 - 230 = 30130599487 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 (31204341331) 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, 109105946 + ... + 109106231.

It is an arithmetic number, because the mean of its divisors is an integer number (4582455738).

Almost surely, 231204341311 is an apocalyptic number.

31204341311 is a deficient number, since it is larger than the sum of its proper divisors (5455304593).

31204341311 is a wasteful number, since it uses less digits than its factorization.

31204341311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218212201.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 31204341311 its reverse (11314340213), we get a palindrome (42518681524).

The spelling of 31204341311 in words is "thirty-one billion, two hundred four million, three hundred forty-one thousand, three hundred eleven".

Divisors: 1 11 13 143 218212177 2400333947 2836758301 31204341311