1121444313 has 32 divisors (see below), whose sum is σ = 1711509504. Its totient is φ = 646920000.

The previous prime is 1121444279. The next prime is 1121444369. The reversal of 1121444313 is 3134441211.

It is not a de Polignac number, because 1121444313 - 2¹⁴ = 1121427929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121442313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53418 + ... + 71388.

It is an arithmetic number, because the mean of its divisors is an integer number (53484672).

Almost surely, 2^1121444313 is an apocalyptic number.

It is an amenable number.

1121444313 is a deficient number, since it is larger than the sum of its proper divisors (590065191).

1121444313 is a wasteful number, since it uses less digits than its factorization.

1121444313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18077.

The product of its digits is 1152, while the sum is 24.

The square root of 1121444313 is about 33487.9726618379. The cubic root of 1121444313 is about 1038.9450325908.

Adding to 1121444313 its reverse (3134441211), we get a palindrome (4255885524).

The spelling of 1121444313 in words is "one billion, one hundred twenty-one million, four hundred forty-four thousand, three hundred thirteen".