1123321420139 has 2 divisors, whose sum is σ = 1123321420140. Its totient is φ = 1123321420138.

The previous prime is 1123321420121. The next prime is 1123321420201. The reversal of 1123321420139 is 9310241233211.

It is a weak prime.

It is an emirp because it is prime and its reverse (9310241233211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123321420139 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123321420439) 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, 561660710069 + 561660710070.

It is an arithmetic number, because the mean of its divisors is an integer number (561660710070).

Almost surely, 2^{1123321420139} is an apocalyptic number.

1123321420139 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123321420139 is an equidigital number, since it uses as much as digits as its factorization.

1123321420139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 1123321420139 in words is "one trillion, one hundred twenty-three billion, three hundred twenty-one million, four hundred twenty thousand, one hundred thirty-nine".