1121608499849 has 2 divisors, whose sum is σ = 1121608499850. Its totient is φ = 1121608499848.

The previous prime is 1121608499801. The next prime is 1121608499887. The reversal of 1121608499849 is 9489948061211.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 777514805824 + 344093694025 = 881768^2 + 586595^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121608499849 - 2²⁸ = 1121340064393 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1121608499791 and 1121608499800.

It is not a weakly prime, because it can be changed into another prime (1121608499449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560804249924 + 560804249925.

It is an arithmetic number, because the mean of its divisors is an integer number (560804249925).

Almost surely, 2^{1121608499849} is an apocalyptic number.

It is an amenable number.

1121608499849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121608499849 is an equidigital number, since it uses as much as digits as its factorization.

1121608499849 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8957952, while the sum is 62.

The spelling of 1121608499849 in words is "one trillion, one hundred twenty-one billion, six hundred eight million, four hundred ninety-nine thousand, eight hundred forty-nine".