Search a number
-
+
1331230211 is a prime number
BaseRepresentation
bin100111101011000…
…1111011000000011
310102202221111112122
41033112033120003
510211243331321
6340032514455
744663161433
oct11726173003
93382844478
101331230211
11623498a63
123119aba2b
13182a50bac
14c8b302c3
157bd0d8ab
hex4f58f603

1331230211 has 2 divisors, whose sum is σ = 1331230212. Its totient is φ = 1331230210.

The previous prime is 1331230177. The next prime is 1331230259. The reversal of 1331230211 is 1120321331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1331230211 - 214 = 1331213827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331230211.

It is not a weakly prime, because it can be changed into another prime (1331230261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665615105 + 665615106.

It is an arithmetic number, because the mean of its divisors is an integer number (665615106).

Almost surely, 21331230211 is an apocalyptic number.

1331230211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331230211 is an equidigital number, since it uses as much as digits as its factorization.

1331230211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1331230211 is about 36486.0276133207. The cubic root of 1331230211 is about 1100.0634153523.

Adding to 1331230211 its reverse (1120321331), we get a palindrome (2451551542).

The spelling of 1331230211 in words is "one billion, three hundred thirty-one million, two hundred thirty thousand, two hundred eleven".