1123316405 has 16 divisors (see below), whose sum is σ = 1366848000. Its totient is φ = 886104960.

The previous prime is 1123316393. The next prime is 1123316419. The reversal of 1123316405 is 5046133211.

It is a de Polignac number, because none of the positive numbers 2^k-1123316405 is a prime.

It is a congruent number.

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, 413000 + ... + 415710.

It is an arithmetic number, because the mean of its divisors is an integer number (85428000).

Almost surely, 2^1123316405 is an apocalyptic number.

It is an amenable number.

1123316405 is a deficient number, since it is larger than the sum of its proper divisors (243531595).

1123316405 is a wasteful number, since it uses less digits than its factorization.

1123316405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3844.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1123316405 is about 33515.9127132173. The cubic root of 1123316405 is about 1039.5228349133.

Adding to 1123316405 its reverse (5046133211), we get a palindrome (6169449616).

The spelling of 1123316405 in words is "one billion, one hundred twenty-three million, three hundred sixteen thousand, four hundred five".