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1124131213 is a prime number
BaseRepresentation
bin100001100000000…
…1110000110001101
32220100020210010101
41003000032012031
54300234144323
6303314011101
736566646322
oct10300160615
92810223111
101124131213
115275a7467
12274576a91
1314bb7c5ca
14a9420b49
1568a50dad
hex4300e18d

1124131213 has 2 divisors, whose sum is σ = 1124131214. Its totient is φ = 1124131212.

The previous prime is 1124131201. The next prime is 1124131231. The reversal of 1124131213 is 3121314211.

Together with next prime (1124131231) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 735331689 + 388799524 = 27117^2 + 19718^2 .

It is an emirp because it is prime and its reverse (3121314211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-1124131213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1124131513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 562065606 + 562065607.

It is an arithmetic number, because the mean of its divisors is an integer number (562065607).

Almost surely, 21124131213 is an apocalyptic number.

It is an amenable number.

1124131213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1124131213 is an equidigital number, since it uses as much as digits as its factorization.

1124131213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 19.

The square root of 1124131213 is about 33528.0660492072. The cubic root of 1124131213 is about 1039.7741166848.

Adding to 1124131213 its reverse (3121314211), we get a palindrome (4245445424).

The spelling of 1124131213 in words is "one billion, one hundred twenty-four million, one hundred thirty-one thousand, two hundred thirteen".