122312144057 has 2 divisors, whose sum is σ = 122312144058. Its totient is φ = 122312144056.

The previous prime is 122312144041. The next prime is 122312144113. The reversal of 122312144057 is 750441213221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68631424576 + 53680719481 = 261976^2 + 231691^2 .

It is a cyclic number.

It is not a de Polignac number, because 122312144057 - 2⁴ = 122312144041 is a prime.

It is not a weakly prime, because it can be changed into another prime (122312144657) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61156072028 + 61156072029.

It is an arithmetic number, because the mean of its divisors is an integer number (61156072029).

Almost surely, 2^122312144057 is an apocalyptic number.

It is an amenable number.

122312144057 is a deficient number, since it is larger than the sum of its proper divisors (1).

122312144057 is an equidigital number, since it uses as much as digits as its factorization.

122312144057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13440, while the sum is 32.

Adding to 122312144057 its reverse (750441213221), we get a palindrome (872753357278).

The spelling of 122312144057 in words is "one hundred twenty-two billion, three hundred twelve million, one hundred forty-four thousand, fifty-seven".