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1233120613 is a prime number
BaseRepresentation
bin100100101111111…
…1110110101100101
310011221100000110211
41021133332311211
510011134324423
6322210015421
742362231554
oct11137766545
93157300424
101233120613
1158307884a
122a4b77571
1316861c98a
14b9ab1d9b
15733ce10d
hex497fed65

1233120613 has 2 divisors, whose sum is σ = 1233120614. Its totient is φ = 1233120612.

The previous prime is 1233120611. The next prime is 1233120641. The reversal of 1233120613 is 3160213321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1201107649 + 32012964 = 34657^2 + 5658^2 .

It is a cyclic number.

It is not a de Polignac number, because 1233120613 - 21 = 1233120611 is a prime.

Together with 1233120611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1233120611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616560306 + 616560307.

It is an arithmetic number, because the mean of its divisors is an integer number (616560307).

Almost surely, 21233120613 is an apocalyptic number.

It is an amenable number.

1233120613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1233120613 is an equidigital number, since it uses as much as digits as its factorization.

1233120613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1233120613 is about 35115.8171341633. The cubic root of 1233120613 is about 1072.3466165495.

Adding to 1233120613 its reverse (3160213321), we get a palindrome (4393333934).

The spelling of 1233120613 in words is "one billion, two hundred thirty-three million, one hundred twenty thousand, six hundred thirteen".