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312122210423 is a prime number
BaseRepresentation
bin1001000101010111110…
…11101111100001110111
31002211122100000010021112
410202223323233201313
520103211241213143
6355215330105235
731356452004602
oct4425373574167
91084570003245
10312122210423
1111040893a421
12505a911b21b
13235823b249a
141116d093339
1581bba1ee18
hex48abeef877

312122210423 has 2 divisors, whose sum is σ = 312122210424. Its totient is φ = 312122210422.

The previous prime is 312122210381. The next prime is 312122210461. The reversal of 312122210423 is 324012221213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312122210423 - 26 = 312122210359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312122230423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156061105211 + 156061105212.

It is an arithmetic number, because the mean of its divisors is an integer number (156061105212).

Almost surely, 2312122210423 is an apocalyptic number.

312122210423 is a deficient number, since it is larger than the sum of its proper divisors (1).

312122210423 is an equidigital number, since it uses as much as digits as its factorization.

312122210423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 312122210423 its reverse (324012221213), we get a palindrome (636134431636).

The spelling of 312122210423 in words is "three hundred twelve billion, one hundred twenty-two million, two hundred ten thousand, four hundred twenty-three".