12104561057 has 2 divisors, whose sum is σ = 12104561058. Its totient is φ = 12104561056.

The previous prime is 12104561023. The next prime is 12104561087. The reversal of 12104561057 is 75016540121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7928299681 + 4176261376 = 89041^2 + 64624^2 .

It is a cyclic number.

It is not a de Polignac number, because 12104561057 - 2¹⁶ = 12104495521 is a prime.

It is not a weakly prime, because it can be changed into another prime (12104561087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052280528 + 6052280529.

It is an arithmetic number, because the mean of its divisors is an integer number (6052280529).

Almost surely, 2^12104561057 is an apocalyptic number.

It is an amenable number.

12104561057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12104561057 is an equidigital number, since it uses as much as digits as its factorization.

12104561057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 32.

The spelling of 12104561057 in words is "twelve billion, one hundred four million, five hundred sixty-one thousand, fifty-seven".