1123353451 has 8 divisors (see below), whose sum is σ = 1246248000. Its totient is φ = 1003920840.

The previous prime is 1123353449. The next prime is 1123353487. The reversal of 1123353451 is 1543533211.

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 1123353451 - 2¹ = 1123353449 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123353431) 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, 864801 + ... + 866098.

It is an arithmetic number, because the mean of its divisors is an integer number (155781000).

Almost surely, 2^1123353451 is an apocalyptic number.

1123353451 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1123353451 is a deficient number, since it is larger than the sum of its proper divisors (122894549).

1123353451 is a wasteful number, since it uses less digits than its factorization.

1123353451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730969.

The product of its digits is 5400, while the sum is 28.

The square root of 1123353451 is about 33516.4653715155. The cubic root of 1123353451 is about 1039.5342623080.

Adding to 1123353451 its reverse (1543533211), we get a palindrome (2666886662).

The spelling of 1123353451 in words is "one billion, one hundred twenty-three million, three hundred fifty-three thousand, four hundred fifty-one".