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12010031387 is a prime number
BaseRepresentation
bin10110010111101101…
…01000100100011011
31010222222222210211022
423023312220210123
5144044032001022
65303424353055
7603422403524
oct131366504433
933888883738
1012010031387
115103393382
1223b217578b
131195267763
1481d0ad84b
154a45a2c42
hex2cbda891b

12010031387 has 2 divisors, whose sum is σ = 12010031388. Its totient is φ = 12010031386.

The previous prime is 12010031381. The next prime is 12010031413. The reversal of 12010031387 is 78313001021.

It is an a-pointer prime, because the next prime (12010031413) can be obtained adding 12010031387 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12010031387 - 212 = 12010027291 is a prime.

It is a super-3 number, since 3×120100313873 (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12010031381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005015693 + 6005015694.

It is an arithmetic number, because the mean of its divisors is an integer number (6005015694).

Almost surely, 212010031387 is an apocalyptic number.

12010031387 is a deficient number, since it is larger than the sum of its proper divisors (1).

12010031387 is an equidigital number, since it uses as much as digits as its factorization.

12010031387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 26.

The spelling of 12010031387 in words is "twelve billion, ten million, thirty-one thousand, three hundred eighty-seven".