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30800311231 is a prime number
BaseRepresentation
bin11100101011110101…
…110111001110111111
32221111112012220222211
4130223311313032333
51001034334424411
622052141321251
72140155216514
oct345365671677
987445186884
1030800311231
1112075a77778
125b76b66227
132b9b126841
1416c285530b
15c04013221
hex72bd773bf

30800311231 has 2 divisors, whose sum is σ = 30800311232. Its totient is φ = 30800311230.

The previous prime is 30800311211. The next prime is 30800311249. The reversal of 30800311231 is 13211300803.

It is a strong prime.

It is an emirp because it is prime and its reverse (13211300803) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30800311231 - 215 = 30800278463 is a prime.

It is a super-2 number, since 2×308003112312 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30800311211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15400155615 + 15400155616.

It is an arithmetic number, because the mean of its divisors is an integer number (15400155616).

Almost surely, 230800311231 is an apocalyptic number.

30800311231 is a deficient number, since it is larger than the sum of its proper divisors (1).

30800311231 is an equidigital number, since it uses as much as digits as its factorization.

30800311231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 30800311231 in words is "thirty billion, eight hundred million, three hundred eleven thousand, two hundred thirty-one".