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111110001000001 = 581338861491857
BaseRepresentation
bin11001010000110111010000…
…001000111111111001000001
3112120102000100000020222201021
4121100313100020333321001
5104030411240224000001
61032151121345305441
732255301255402523
oct3120672010777101
9476360300228637
10111110001000001
1132448539a29543
1210565a42635281
1349cc8220270c3
141d61a7774ba13
15cca35d1bcba1
hex650dd023fe41

111110001000001 has 8 divisors (see below), whose sum is σ = 111132200655144. Its totient is φ = 111087802417920.

The previous prime is 111110000999989. The next prime is 111110001000017. The reversal of 111110001000001 is 100000100011111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 57670962339600 + 53439038660401 = 7594140^2 + 7310201^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 111110001000001 - 217 = 111110000868929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110001000601) 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, 225653065 + ... + 226144921.

It is an arithmetic number, because the mean of its divisors is an integer number (13891525081893).

Almost surely, 2111110001000001 is an apocalyptic number.

It is an amenable number.

111110001000001 is a deficient number, since it is larger than the sum of its proper divisors (22199655143).

111110001000001 is an equidigital number, since it uses as much as digits as its factorization.

111110001000001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 536531.

The product of its (nonzero) digits is 1, while the sum is 7.

Adding to 111110001000001 its reverse (100000100011111), we get a palindrome (211110101011112).

The spelling of 111110001000001 in words is "one hundred eleven trillion, one hundred ten billion, one million, one", and thus it is an aban number.

Divisors: 1 5813 38861 491857 225898993 2859164741 19114054877 111110001000001