1123212232249 has 2 divisors, whose sum is σ = 1123212232250. Its totient is φ = 1123212232248.

The previous prime is 1123212232213. The next prime is 1123212232349. The reversal of 1123212232249 is 9422322123211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 570278708224 + 552933524025 = 755168^2 + 743595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123212232249 - 2⁹ = 1123212231737 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123212232349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561606116124 + 561606116125.

It is an arithmetic number, because the mean of its divisors is an integer number (561606116125).

Almost surely, 2^{1123212232249} is an apocalyptic number.

It is an amenable number.

1123212232249 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123212232249 is an equidigital number, since it uses as much as digits as its factorization.

1123212232249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 20736, while the sum is 34.

The spelling of 1123212232249 in words is "one trillion, one hundred twenty-three billion, two hundred twelve million, two hundred thirty-two thousand, two hundred forty-nine".