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42303330431 is a prime number
BaseRepresentation
bin100111011001011110…
…011001100001111111
311001012012011211211222
4213121132121201333
51143114123033211
631233415103555
73025213242605
oct473136314177
9131165154758
1042303330431
1116a3914430a
128247371bbb
133cb232258b
142094465875
151178d151db
hex9d979987f

42303330431 has 2 divisors, whose sum is σ = 42303330432. Its totient is φ = 42303330430.

The previous prime is 42303330413. The next prime is 42303330449. The reversal of 42303330431 is 13403330324.

It is a happy number.

Together with previous prime (42303330413) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (42303330413) and next prime (42303330449).

It is a cyclic number.

It is not a de Polignac number, because 42303330431 - 226 = 42236221567 is a prime.

It is a super-2 number, since 2×423033304312 (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42303330431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42303333431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21151665215 + 21151665216.

It is an arithmetic number, because the mean of its divisors is an integer number (21151665216).

Almost surely, 242303330431 is an apocalyptic number.

42303330431 is a deficient number, since it is larger than the sum of its proper divisors (1).

42303330431 is an equidigital number, since it uses as much as digits as its factorization.

42303330431 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 42303330431 its reverse (13403330324), we get a palindrome (55706660755).

The spelling of 42303330431 in words is "forty-two billion, three hundred three million, three hundred thirty thousand, four hundred thirty-one".