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3120455131 is a prime number
BaseRepresentation
bin1011100111111110…
…0101110111011011
322001110200112201021
42321333211313123
522342314031011
61233350103311
7140220300553
oct27177456733
98043615637
103120455131
111361463142
1273104ab37
133a963a671
14218600163
15133e39471
hexb9fe5ddb

3120455131 has 2 divisors, whose sum is σ = 3120455132. Its totient is φ = 3120455130.

The previous prime is 3120455113. The next prime is 3120455141. The reversal of 3120455131 is 1315540213.

It is a happy number.

Together with previous prime (3120455113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3120455131 - 25 = 3120455099 is a prime.

It is a super-2 number, since 2×31204551312 = 19474480449168454322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3120455096 and 3120455105.

It is not a weakly prime, because it can be changed into another prime (3120455141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1560227565 + 1560227566.

It is an arithmetic number, because the mean of its divisors is an integer number (1560227566).

Almost surely, 23120455131 is an apocalyptic number.

3120455131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3120455131 is an equidigital number, since it uses as much as digits as its factorization.

3120455131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 3120455131 is about 55861.0341024940. The cubic root of 3120455131 is about 1461.2997637603.

Adding to 3120455131 its reverse (1315540213), we get a palindrome (4435995344).

The spelling of 3120455131 in words is "three billion, one hundred twenty million, four hundred fifty-five thousand, one hundred thirty-one".