12102312077 has 2 divisors, whose sum is σ = 12102312078. Its totient is φ = 12102312076.

The previous prime is 12102312043. The next prime is 12102312139. The reversal of 12102312077 is 77021320121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9916375561 + 2185936516 = 99581^2 + 46754^2 .

It is a cyclic number.

It is not a de Polignac number, because 12102312077 - 2³² = 7807344781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12102312007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051156038 + 6051156039.

It is an arithmetic number, because the mean of its divisors is an integer number (6051156039).

Almost surely, 2^12102312077 is an apocalyptic number.

It is an amenable number.

12102312077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102312077 is an equidigital number, since it uses as much as digits as its factorization.

12102312077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176, while the sum is 26.

Adding to 12102312077 its reverse (77021320121), we get a palindrome (89123632198).

The spelling of 12102312077 in words is "twelve billion, one hundred two million, three hundred twelve thousand, seventy-seven".