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80123896331 is a prime number
BaseRepresentation
bin100101010011111000…
…0011010001000001011
321122210222020122210222
41022213300122020023
52303043204140311
6100450341100255
75534354611253
oct1124760321013
9248728218728
1080123896331
1130a8693a246
12136413b768b
13772b9c435b
143c413ca963
15213e2e3adb
hex12a7c1a20b

80123896331 has 2 divisors, whose sum is σ = 80123896332. Its totient is φ = 80123896330.

The previous prime is 80123896313. The next prime is 80123896343. The reversal of 80123896331 is 13369832108.

Together with previous prime (80123896313) 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 a de Polignac number, because none of the positive numbers 2k-80123896331 is a prime.

It is a super-2 number, since 2×801238963312 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (80123896031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40061948165 + 40061948166.

It is an arithmetic number, because the mean of its divisors is an integer number (40061948166).

Almost surely, 280123896331 is an apocalyptic number.

80123896331 is a deficient number, since it is larger than the sum of its proper divisors (1).

80123896331 is an equidigital number, since it uses as much as digits as its factorization.

80123896331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 44.

The spelling of 80123896331 in words is "eighty billion, one hundred twenty-three million, eight hundred ninety-six thousand, three hundred thirty-one".