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122542352971 is a prime number
BaseRepresentation
bin111001000100000010…
…1111110101001001011
3102201022012001112010121
41302020011332221023
54001431320243341
6132143431524111
711565466546123
oct1621005765113
9381265045117
10122542352971
1147a73a66585
121b8bb229637
13b72bb2533c
145d06c5dc83
1532c329a4d1
hex1c8817ea4b

122542352971 has 2 divisors, whose sum is σ = 122542352972. Its totient is φ = 122542352970.

The previous prime is 122542352969. The next prime is 122542352983. The reversal of 122542352971 is 179253245221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122542352971 - 21 = 122542352969 is a prime.

Together with 122542352969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (122542352921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61271176485 + 61271176486.

It is an arithmetic number, because the mean of its divisors is an integer number (61271176486).

Almost surely, 2122542352971 is an apocalyptic number.

122542352971 is a deficient number, since it is larger than the sum of its proper divisors (1).

122542352971 is an equidigital number, since it uses as much as digits as its factorization.

122542352971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 302400, while the sum is 43.

The spelling of 122542352971 in words is "one hundred twenty-two billion, five hundred forty-two million, three hundred fifty-two thousand, nine hundred seventy-one".