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211331000001 = 31110196284563
BaseRepresentation
bin1100010011010001001…
…1110010011011000001
3202012111000120010101010
43010310103302123001
511430301214000001
6241030100431133
721160656601302
oct3046423623301
9665430503333
10211331000001
1181696927210
1234b5a3a84a9
1316c0b9a97c4
14a32ad147a9
15576d0e78d6
hex31344f26c1

211331000001 has 16 divisors (see below), whose sum is σ = 307692253440. Its totient is φ = 127953682320.

The previous prime is 211330999993. The next prime is 211331000059. The reversal of 211331000001 is 100000133112.

It is not a de Polignac number, because 211331000001 - 23 = 211330999993 is a prime.

It is a super-2 number, since 2×2113310000012 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (211331000401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3108655 + ... + 3175908.

It is an arithmetic number, because the mean of its divisors is an integer number (19230765840).

Almost surely, 2211331000001 is an apocalyptic number.

It is an amenable number.

211331000001 is a deficient number, since it is larger than the sum of its proper divisors (96361253439).

211331000001 is a wasteful number, since it uses less digits than its factorization.

211331000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6285596.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 211331000001 its reverse (100000133112), we get a palindrome (311331133113).

The spelling of 211331000001 in words is "two hundred eleven billion, three hundred thirty-one million, one", and thus it is an aban number.

Divisors: 1 3 11 33 1019 3057 11209 33627 6284563 18853689 69130193 207390579 6403969697 19211909091 70443666667 211331000001