Search a number
-
+
31311012110011 = 2911537907118429
BaseRepresentation
bin1110001111010001010011…
…10000010001111010111011
311002212022012021021100202121
413013220221300101322323
513100444423100010021
6150332025210342111
76411101032431604
oct707505160217273
9132768167240677
1031311012110011
119a81a20072507
12361834a72a937
131461800b110ca
147a3665278dab
15394710881741
hex1c7a29c11ebb

31311012110011 has 16 divisors (see below), whose sum is σ = 32423168512800. Its totient is φ = 30201027268608.

The previous prime is 31311012109967. The next prime is 31311012110033. The reversal of 31311012110011 is 11001121011313.

Adding to 31311012110011 its reverse (11001121011313), we get a palindrome (42312133121324).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31311012110011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311012111011) 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, 264327145 + ... + 264445573.

It is an arithmetic number, because the mean of its divisors is an integer number (2026448032050).

Almost surely, 231311012110011 is an apocalyptic number.

31311012110011 is a deficient number, since it is larger than the sum of its proper divisors (1112156402789).

31311012110011 is a wasteful number, since it uses less digits than its factorization.

31311012110011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127518.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 31311012110011 in words is "thirty-one trillion, three hundred eleven billion, twelve million, one hundred ten thousand, eleven".

Divisors: 1 29 1153 7907 33437 118429 229303 3434441 9116771 136548637 264386359 936418103 3959910473 27156124987 1079690072759 31311012110011