Search a number
-
+
131012210120011 = 1111910200920001
BaseRepresentation
bin11101110010011110101000…
…001111101101010101001011
3122011212122102011221002001221
4131302132220033231111023
5114133001001242320021
61142350102313422511
736411214461601153
oct3562365017552513
9564778364832057
10131012210120011
1138820a6a149aa0
121283b06410aa37
1358145243a3bbc
14244d04c0bb763
151022ddcc38241
hex7727a83ed54b

131012210120011 has 4 divisors (see below), whose sum is σ = 142922411040024. Its totient is φ = 119102009200000.

The previous prime is 131012210119997. The next prime is 131012210120017. The reversal of 131012210120011 is 110021012210131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131012210120011 - 211 = 131012210117963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131012210120017) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5955100459990 + ... + 5955100460011.

It is an arithmetic number, because the mean of its divisors is an integer number (35730602760006).

Almost surely, 2131012210120011 is an apocalyptic number.

131012210120011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131012210120011 is a deficient number, since it is larger than the sum of its proper divisors (11910200920013).

131012210120011 is a wasteful number, since it uses less digits than its factorization.

131012210120011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11910200920012.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 131012210120011 its reverse (110021012210131), we get a palindrome (241033222330142).

The spelling of 131012210120011 in words is "one hundred thirty-one trillion, twelve billion, two hundred ten million, one hundred twenty thousand, eleven".

Divisors: 1 11 11910200920001 131012210120011