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131233402211 = 1916342374363
BaseRepresentation
bin111101000111000011…
…1101100110101100011
3110112201212210120101012
41322032013230311203
54122231222332321
6140142055131135
712324041341112
oct1721607546543
9415655716335
10131233402211
115072391a4aa
1221525973aab
13c4b5592722
1464cd211c79
15363129b05b
hex1e8e1ecd63

131233402211 has 8 divisors (see below), whose sum is σ = 138987913920. Its totient is φ = 123563639592.

The previous prime is 131233402151. The next prime is 131233402213. The reversal of 131233402211 is 112204332131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-131233402211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131233402213) 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, 21184085 + ... + 21190278.

It is an arithmetic number, because the mean of its divisors is an integer number (17373489240).

Almost surely, 2131233402211 is an apocalyptic number.

131233402211 is a deficient number, since it is larger than the sum of its proper divisors (7754511709).

131233402211 is a wasteful number, since it uses less digits than its factorization.

131233402211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42374545.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 131233402211 its reverse (112204332131), we get a palindrome (243437734342).

The spelling of 131233402211 in words is "one hundred thirty-one billion, two hundred thirty-three million, four hundred two thousand, two hundred eleven".

Divisors: 1 19 163 3097 42374363 805112897 6907021169 131233402211