1121444453 has 8 divisors (see below), whose sum is σ = 1126052928. Its totient is φ = 1116846144.

The previous prime is 1121444399. The next prime is 1121444461. The reversal of 1121444453 is 3544441211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1121444453 - 2⁸ = 1121444197 is a prime.

It is a super-2 number, since 2×1121444453² = 2515275322328938418, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121444473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278150 + ... + 282152.

It is an arithmetic number, because the mean of its divisors is an integer number (140756616).

Almost surely, 2^1121444453 is an apocalyptic number.

It is an amenable number.

1121444453 is a deficient number, since it is larger than the sum of its proper divisors (4608475).

1121444453 is an equidigital number, since it uses as much as digits as its factorization.

1121444453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5083.

The product of its digits is 7680, while the sum is 29.

The square root of 1121444453 is about 33487.9747521405. The cubic root of 1121444453 is about 1038.9450758244.

Adding to 1121444453 its reverse (3544441211), we get a palindrome (4665885664).

The spelling of 1121444453 in words is "one billion, one hundred twenty-one million, four hundred forty-four thousand, four hundred fifty-three".