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1210210231 is a prime number
BaseRepresentation
bin100100000100010…
…0101011110110111
310010100020001100011
41020020211132313
54434303211411
6320031001051
741663421466
oct11010453667
93110201304
101210210231
1157114a94a
12299369187
1316395a939
14b6a2a9dd
15713a5c21
hex482257b7

1210210231 has 2 divisors, whose sum is σ = 1210210232. Its totient is φ = 1210210230.

The previous prime is 1210210219. The next prime is 1210210237. The reversal of 1210210231 is 1320120121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1210210231 - 211 = 1210208183 is a prime.

It is a super-2 number, since 2×12102102312 = 2929217606434146722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210210237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605105115 + 605105116.

It is an arithmetic number, because the mean of its divisors is an integer number (605105116).

Almost surely, 21210210231 is an apocalyptic number.

1210210231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210210231 is an equidigital number, since it uses as much as digits as its factorization.

1210210231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1210210231 is about 34788.0759887637. The cubic root of 1210210231 is about 1065.6639474142.

Adding to 1210210231 its reverse (1320120121), we get a palindrome (2530330352).

The spelling of 1210210231 in words is "one billion, two hundred ten million, two hundred ten thousand, two hundred thirty-one".