1123097505 has 16 divisors (see below), whose sum is σ = 1891533120. Its totient is φ = 567459648.

The previous prime is 1123097473. The next prime is 1123097527. The reversal of 1123097505 is 5057903211.

It is not a de Polignac number, because 1123097505 - 2⁵ = 1123097473 is a prime.

It is a super-3 number, since 3×1123097505³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1970062 + ... + 1970631.

It is an arithmetic number, because the mean of its divisors is an integer number (118220820).

Almost surely, 2^1123097505 is an apocalyptic number.

1123097505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1123097505 is a deficient number, since it is larger than the sum of its proper divisors (768435615).

1123097505 is a wasteful number, since it uses less digits than its factorization.

1123097505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3940720.

The product of its (nonzero) digits is 9450, while the sum is 33.

The square root of 1123097505 is about 33512.6469411176. The cubic root of 1123097505 is about 1039.4553067945.

The spelling of 1123097505 in words is "one billion, one hundred twenty-three million, ninety-seven thousand, five hundred five".