12121020319 has 2 divisors, whose sum is σ = 12121020320. Its totient is φ = 12121020318.

The previous prime is 12121020277. The next prime is 12121020343. The reversal of 12121020319 is 91302012121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12121020319 - 2¹¹ = 12121018271 is a prime.

It is a super-2 number, since 2×12121020319² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12121020319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121020389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060510159 + 6060510160.

It is an arithmetic number, because the mean of its divisors is an integer number (6060510160).

Almost surely, 2^12121020319 is an apocalyptic number.

12121020319 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121020319 is an equidigital number, since it uses as much as digits as its factorization.

12121020319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 12121020319 in words is "twelve billion, one hundred twenty-one million, twenty thousand, three hundred nineteen".