1123044451451 has 4 divisors (see below), whose sum is σ = 1209432486192. Its totient is φ = 1036656416712.

The previous prime is 1123044451427. The next prime is 1123044451453. The reversal of 1123044451451 is 1541544403211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1123044451451 - 2²² = 1123040257147 is a prime.

It is a super-2 number, since 2×1123044451451² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123044451453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43194017351 + ... + 43194017376.

It is an arithmetic number, because the mean of its divisors is an integer number (302358121548).

Almost surely, 2^{1123044451451} is an apocalyptic number.

1123044451451 is a deficient number, since it is larger than the sum of its proper divisors (86388034741).

1123044451451 is an equidigital number, since it uses as much as digits as its factorization.

1123044451451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86388034740.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 1123044451451 its reverse (1541544403211), we get a palindrome (2664588854662).

The spelling of 1123044451451 in words is "one trillion, one hundred twenty-three billion, forty-four million, four hundred fifty-one thousand, four hundred fifty-one".