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311122000001 = 8910744972763
BaseRepresentation
bin1001000011100000101…
…00001111100010000001
31002202001121221011112002
410201300110033202001
520044134213000001
6354532200113345
731322615236331
oct4416024174201
91082047834462
10311122000001
1110aa4529253a
125036a165855
13234531005b7
14110b62cd0c1
15815dceb46b
hex487050f881

311122000001 has 16 divisors (see below), whose sum is σ = 318269736000. Its totient is φ = 304068323328.

The previous prime is 311121999959. The next prime is 311122000027. The reversal of 311122000001 is 100000221113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-311122000001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311122000031) 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, 4239446 + ... + 4312208.

It is an arithmetic number, because the mean of its divisors is an integer number (19891858500).

Almost surely, 2311122000001 is an apocalyptic number.

It is an amenable number.

311122000001 is a deficient number, since it is larger than the sum of its proper divisors (7147735999).

311122000001 is a wasteful number, since it uses less digits than its factorization.

311122000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73408.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 311122000001 its reverse (100000221113), we get a palindrome (411122221114).

The spelling of 311122000001 in words is "three hundred eleven billion, one hundred twenty-two million, one", and thus it is an aban number.

Divisors: 1 89 107 449 9523 39961 48043 72763 4275827 6475907 7785641 32670587 692922049 2907682243 3495752809 311122000001