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131211244424011 = 612934773295533
BaseRepresentation
bin11101110101010111111111…
…100111010100101101001011
3122012120200011020002022200211
4131311113333213110231023
5114144231112033032021
61143021340305341551
736431461645350013
oct3565277747245513
9565520136068624
10131211244424011
1138898415897524
12128717503378b7
13582a223606c0b
14245892dc20c43
15102818b5053e1
hex7755ff9d4b4b

131211244424011 has 8 divisors (see below), whose sum is σ = 133366794573584. Its totient is φ = 129055840924320.

The previous prime is 131211244423991. The next prime is 131211244424017. The reversal of 131211244424011 is 110424442112131.

It is a happy number.

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 131211244424011 - 25 = 131211244423979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131211244424017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34857600 + ... + 38437933.

It is an arithmetic number, because the mean of its divisors is an integer number (16670849321698).

Almost surely, 2131211244424011 is an apocalyptic number.

131211244424011 is a deficient number, since it is larger than the sum of its proper divisors (2155550149573).

131211244424011 is an equidigital number, since it uses as much as digits as its factorization.

131211244424011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73324941.

The product of its (nonzero) digits is 6144, while the sum is 31.

Adding to 131211244424011 its reverse (110424442112131), we get a palindrome (241635686536142).

The spelling of 131211244424011 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred forty-four million, four hundred twenty-four thousand, eleven".

Divisors: 1 61 29347 1790167 73295533 4471027513 2151004006951 131211244424011