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311332202011 = 1952332999497
BaseRepresentation
bin1001000011111001101…
…10000110011000011011
31002202121021110112110201
410201330312012120123
520100102020431021
6355005105323031
731331050024225
oct4417466063033
91082537415421
10311332202011
11110042a03406
1250408636477
132348781a39c
14110d61a9415
1581724bd591
hex487cd8661b

311332202011 has 16 divisors (see below), whose sum is σ = 328478832000. Its totient is φ = 294262123968.

The previous prime is 311332201993. The next prime is 311332202021. The reversal of 311332202011 is 110202233113.

It is a cyclic number.

It is not a de Polignac number, because 311332202011 - 27 = 311332201883 is a prime.

It is a super-2 number, since 2×3113322020112 (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 311332202011.

It is not an unprimeable number, because it can be changed into a prime (311332202021) 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 15 ways as a sum of consecutive naturals, for example, 32777415 + ... + 32786911.

It is an arithmetic number, because the mean of its divisors is an integer number (20529927000).

Almost surely, 2311332202011 is an apocalyptic number.

311332202011 is a deficient number, since it is larger than the sum of its proper divisors (17146629989).

311332202011 is a wasteful number, since it uses less digits than its factorization.

311332202011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13338.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 311332202011 its reverse (110202233113), we get a palindrome (421534435124).

The spelling of 311332202011 in words is "three hundred eleven billion, three hundred thirty-two million, two hundred two thousand, eleven".

Divisors: 1 19 523 3299 9497 9937 62681 180443 1725377 4966931 31330603 32782163 94371689 595281457 16385905369 311332202011