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31230212411 is a prime number
BaseRepresentation
bin11101000101011101…
…110011100100111011
32222121111011011112202
4131011131303210323
51002424413244121
622202535500415
72153625265646
oct350535634473
988544134482
1031230212411
1112276705902
126076b2770b
132c39207138
1417239a0a5d
15c2bb3140b
hex74577393b

31230212411 has 2 divisors, whose sum is σ = 31230212412. Its totient is φ = 31230212410.

The previous prime is 31230212399. The next prime is 31230212413. The reversal of 31230212411 is 11421203213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31230212411 - 210 = 31230211387 is a prime.

Together with 31230212413, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (31230212413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15615106205 + 15615106206.

It is an arithmetic number, because the mean of its divisors is an integer number (15615106206).

Almost surely, 231230212411 is an apocalyptic number.

31230212411 is a deficient number, since it is larger than the sum of its proper divisors (1).

31230212411 is an equidigital number, since it uses as much as digits as its factorization.

31230212411 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 31230212411 its reverse (11421203213), we get a palindrome (42651415624).

The spelling of 31230212411 in words is "thirty-one billion, two hundred thirty million, two hundred twelve thousand, four hundred eleven".