1121113453 has 8 divisors (see below), whose sum is σ = 1136062368. Its totient is φ = 1106199024.

The previous prime is 1121113451. The next prime is 1121113489. The reversal of 1121113453 is 3543111211.

It is a happy number.

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 1121113453 - 2¹ = 1121113451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121113451) 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, 60475 + ... + 76807.

It is an arithmetic number, because the mean of its divisors is an integer number (142007796).

Almost surely, 2^1121113453 is an apocalyptic number.

It is an amenable number.

1121113453 is a deficient number, since it is larger than the sum of its proper divisors (14948915).

1121113453 is an equidigital number, since it uses as much as digits as its factorization.

1121113453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17243.

The product of its digits is 360, while the sum is 22.

The square root of 1121113453 is about 33483.0323148905. The cubic root of 1121113453 is about 1038.8428491356.

Adding to 1121113453 its reverse (3543111211), we get a palindrome (4664224664).

The spelling of 1121113453 in words is "one billion, one hundred twenty-one million, one hundred thirteen thousand, four hundred fifty-three".