1121020124849 has 2 divisors, whose sum is σ = 1121020124850. Its totient is φ = 1121020124848.

The previous prime is 1121020124837. The next prime is 1121020124863. The reversal of 1121020124849 is 9484210201211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1024194600625 + 96825524224 = 1012025^2 + 311168^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121020124849 is a prime.

It is a super-2 number, since 2×1121020124849² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121020121849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560510062424 + 560510062425.

It is an arithmetic number, because the mean of its divisors is an integer number (560510062425).

Almost surely, 2^{1121020124849} is an apocalyptic number.

It is an amenable number.

1121020124849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121020124849 is an equidigital number, since it uses as much as digits as its factorization.

1121020124849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 1121020124849 in words is "one trillion, one hundred twenty-one billion, twenty million, one hundred twenty-four thousand, eight hundred forty-nine".