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61200622123 is a prime number
BaseRepresentation
bin111000111111110101…
…110110001000101011
312211222011202201200021
4320333311312020223
52000314324401443
644040513421311
74264415463514
oct707765661053
9184864681607
1061200622123
1123a56179253
12ba3bb6a837
135a0440b894
142d68105a0b
1518d2d629ed
hexe3fd7622b

61200622123 has 2 divisors, whose sum is σ = 61200622124. Its totient is φ = 61200622122.

The previous prime is 61200622019. The next prime is 61200622129. The reversal of 61200622123 is 32122600216.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 61200622123 - 29 = 61200621611 is a prime.

It is a super-2 number, since 2×612006221232 (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (61200622129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30600311061 + 30600311062.

It is an arithmetic number, because the mean of its divisors is an integer number (30600311062).

Almost surely, 261200622123 is an apocalyptic number.

61200622123 is a deficient number, since it is larger than the sum of its proper divisors (1).

61200622123 is an equidigital number, since it uses as much as digits as its factorization.

61200622123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 61200622123 in words is "sixty-one billion, two hundred million, six hundred twenty-two thousand, one hundred twenty-three".