12051404077 has 2 divisors, whose sum is σ = 12051404078. Its totient is φ = 12051404076.

The previous prime is 12051404059. The next prime is 12051404129. The reversal of 12051404077 is 77040415021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12041550756 + 9853321 = 109734^2 + 3139^2 .

It is an emirp because it is prime and its reverse (77040415021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12051404077 - 2¹⁵ = 12051371309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12051404017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6025702038 + 6025702039.

It is an arithmetic number, because the mean of its divisors is an integer number (6025702039).

Almost surely, 2^12051404077 is an apocalyptic number.

It is an amenable number.

12051404077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12051404077 is an equidigital number, since it uses as much as digits as its factorization.

12051404077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7840, while the sum is 31.

Adding to 12051404077 its reverse (77040415021), we get a palindrome (89091819098).

The spelling of 12051404077 in words is "twelve billion, fifty-one million, four hundred four thousand, seventy-seven".