Search a number
-
+
311103123001 = 11194731670887
BaseRepresentation
bin1001000011011110011…
…00001110111000111001
31002202000022102010010221
410201233030032320321
520044114344414001
6354530243340041
731322265625336
oct4415714167071
91082008363127
10311103123001
1110aa35669a10
1250363981621
132344c221388
14110b39b798d
15815c31d1a1
hex486f30ee39

311103123001 has 16 divisors (see below), whose sum is σ = 364848629760. Its totient is φ = 262234936080.

The previous prime is 311103122969. The next prime is 311103123011. The reversal of 311103123001 is 100321301113.

It is a cyclic number.

It is not a de Polignac number, because 311103123001 - 25 = 311103122969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (311103123011) 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, 15825621 + ... + 15845266.

It is an arithmetic number, because the mean of its divisors is an integer number (22803039360).

Almost surely, 2311103123001 is an apocalyptic number.

It is an amenable number.

311103123001 is a deficient number, since it is larger than the sum of its proper divisors (53745506759).

311103123001 is a wasteful number, since it uses less digits than its factorization.

311103123001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31670964.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 311103123001 its reverse (100321301113), we get a palindrome (411424424114).

The spelling of 311103123001 in words is "three hundred eleven billion, one hundred three million, one hundred twenty-three thousand, one".

Divisors: 1 11 19 47 209 517 893 9823 31670887 348379757 601746853 1488531689 6619215383 16373848579 28282102091 311103123001