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2131231303 is a prime number
BaseRepresentation
bin111111100001000…
…0000001001000111
312111112021202201201
41333002000021013
513331043400203
6551251403331
7103546111225
oct17702001107
95445252651
102131231303
119a402a693
124b58b3547
1327c704416
14163099b15
15c7185e1d
hex7f080247

2131231303 has 2 divisors, whose sum is σ = 2131231304. Its totient is φ = 2131231302.

The previous prime is 2131231279. The next prime is 2131231327. The reversal of 2131231303 is 3031321312.

It is a balanced prime because it is at equal distance from previous prime (2131231279) and next prime (2131231327).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-2131231303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131231703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065615651 + 1065615652.

It is an arithmetic number, because the mean of its divisors is an integer number (1065615652).

Almost surely, 22131231303 is an apocalyptic number.

2131231303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131231303 is an equidigital number, since it uses as much as digits as its factorization.

2131231303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 2131231303 is about 46165.2607812411. The cubic root of 2131231303 is about 1286.8962305351.

Adding to 2131231303 its reverse (3031321312), we get a palindrome (5162552615).

Subtracting 2131231303 from its reverse (3031321312), we obtain a palindrome (900090009).

The spelling of 2131231303 in words is "two billion, one hundred thirty-one million, two hundred thirty-one thousand, three hundred three".