1123004656445 has 16 divisors (see below), whose sum is σ = 1540185528960. Its totient is φ = 770027907264.

The previous prime is 1123004656441. The next prime is 1123004656481. The reversal of 1123004656445 is 5446564003211.

It is not a de Polignac number, because 1123004656445 - 2² = 1123004656441 is a prime.

It is a super-2 number, since 2×1123004656445² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123004656441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182759 + ... + 1509771.

It is an arithmetic number, because the mean of its divisors is an integer number (96261595560).

Almost surely, 2^{1123004656445} is an apocalyptic number.

It is an amenable number.

1123004656445 is a deficient number, since it is larger than the sum of its proper divisors (417180872515).

1123004656445 is a wasteful number, since it uses less digits than its factorization.

1123004656445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351204.

The product of its (nonzero) digits is 345600, while the sum is 41.

Adding to 1123004656445 its reverse (5446564003211), we get a palindrome (6569568659656).

The spelling of 1123004656445 in words is "one trillion, one hundred twenty-three billion, four million, six hundred fifty-six thousand, four hundred forty-five".