1121090453 has 24 divisors (see below), whose sum is σ = 1343786400. Its totient is φ = 932027040.

The previous prime is 1121090441. The next prime is 1121090473. The reversal of 1121090453 is 3540901211.

It is not a de Polignac number, because 1121090453 - 2⁴ = 1121090437 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 (1121090413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 312158 + ... + 315728.

It is an arithmetic number, because the mean of its divisors is an integer number (55991100).

Almost surely, 2^1121090453 is an apocalyptic number.

It is an amenable number.

1121090453 is a deficient number, since it is larger than the sum of its proper divisors (222695947).

1121090453 is a wasteful number, since it uses less digits than its factorization.

1121090453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777 (or 3770 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 1121090453 is about 33482.6888555863. The cubic root of 1121090453 is about 1038.8357450229.

Adding to 1121090453 its reverse (3540901211), we get a palindrome (4661991664).

The spelling of 1121090453 in words is "one billion, one hundred twenty-one million, ninety thousand, four hundred fifty-three".