12020013077 has 2 divisors, whose sum is σ = 12020013078. Its totient is φ = 12020013076.

The previous prime is 12020013053. The next prime is 12020013163. The reversal of 12020013077 is 77031002021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11915687281 + 104325796 = 109159^2 + 10214^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020013077 - 2¹² = 12020008981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020013037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010006538 + 6010006539.

It is an arithmetic number, because the mean of its divisors is an integer number (6010006539).

Almost surely, 2^12020013077 is an apocalyptic number.

It is an amenable number.

12020013077 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020013077 is an equidigital number, since it uses as much as digits as its factorization.

12020013077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 23.

Adding to 12020013077 its reverse (77031002021), we get a palindrome (89051015098).

The spelling of 12020013077 in words is "twelve billion, twenty million, thirteen thousand, seventy-seven".