12100111057 has 2 divisors, whose sum is σ = 12100111058. Its totient is φ = 12100111056.

The previous prime is 12100111043. The next prime is 12100111129. The reversal of 12100111057 is 75011100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11493769681 + 606341376 = 107209^2 + 24624^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100111057 - 2³¹ = 9952627409 is a prime.

It is not a weakly prime, because it can be changed into another prime (12100111027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050055528 + 6050055529.

It is an arithmetic number, because the mean of its divisors is an integer number (6050055529).

Almost surely, 2^12100111057 is an apocalyptic number.

It is an amenable number.

12100111057 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100111057 is an equidigital number, since it uses as much as digits as its factorization.

12100111057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70, while the sum is 19.

Adding to 12100111057 its reverse (75011100121), we get a palindrome (87111211178).

The spelling of 12100111057 in words is "twelve billion, one hundred million, one hundred eleven thousand, fifty-seven".