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131133231211 = 1729265990327
BaseRepresentation
bin111101000100000100…
…1100101000001101011
3110112110220022100121011
41322020021211001223
54122030101344321
6140124120124351
712321414034303
oct1721011450153
9415426270534
10131133231211
1150682321554
12214b83066b7
13c49a8bc148
1464bdbb8603
1536275b0ae1
hex1e8826506b

131133231211 has 8 divisors (see below), whose sum is σ = 143634777120. Its totient is φ = 119163666048.

The previous prime is 131133231193. The next prime is 131133231287. The reversal of 131133231211 is 112132331131.

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 131133231211 - 25 = 131133231179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131133231511) 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, 132994671 + ... + 132995656.

It is an arithmetic number, because the mean of its divisors is an integer number (17954347140).

Almost surely, 2131133231211 is an apocalyptic number.

131133231211 is a deficient number, since it is larger than the sum of its proper divisors (12501545909).

131133231211 is a wasteful number, since it uses less digits than its factorization.

131133231211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265990373.

The product of its digits is 324, while the sum is 22.

Adding to 131133231211 its reverse (112132331131), we get a palindrome (243265562342).

The spelling of 131133231211 in words is "one hundred thirty-one billion, one hundred thirty-three million, two hundred thirty-one thousand, two hundred eleven".

Divisors: 1 17 29 493 265990327 4521835559 7713719483 131133231211