12020312069 has 2 divisors, whose sum is σ = 12020312070. Its totient is φ = 12020312068.

The previous prime is 12020312047. The next prime is 12020312131. The reversal of 12020312069 is 96021302021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11974924900 + 45387169 = 109430^2 + 6737^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12020312069 is a prime.

It is a super-2 number, since 2×12020312069² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12020312039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010156034 + 6010156035.

It is an arithmetic number, because the mean of its divisors is an integer number (6010156035).

Almost surely, 2^12020312069 is an apocalyptic number.

It is an amenable number.

12020312069 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020312069 is an equidigital number, since it uses as much as digits as its factorization.

12020312069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 12020312069 in words is "twelve billion, twenty million, three hundred twelve thousand, sixty-nine".