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31203313079 is a prime number
BaseRepresentation
bin11101000011110111…
…001100010110110111
32222112121112112121012
4131003313030112313
51002401022004304
622200135142435
72153150533151
oct350367142667
988477475535
1031203313079
1112262502a54
126069b14a1b
132c33779583
14172019bad1
15c295bb16e
hex743dcc5b7

31203313079 has 2 divisors, whose sum is σ = 31203313080. Its totient is φ = 31203313078.

The previous prime is 31203313039. The next prime is 31203313081. The reversal of 31203313079 is 97031330213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31203313079 - 220 = 31202264503 is a prime.

Together with 31203313081, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31203313039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15601656539 + 15601656540.

It is an arithmetic number, because the mean of its divisors is an integer number (15601656540).

Almost surely, 231203313079 is an apocalyptic number.

31203313079 is a deficient number, since it is larger than the sum of its proper divisors (1).

31203313079 is an equidigital number, since it uses as much as digits as its factorization.

31203313079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 32.

The spelling of 31203313079 in words is "thirty-one billion, two hundred three million, three hundred thirteen thousand, seventy-nine".