1123542545516 has 12 divisors (see below), whose sum is σ = 2051686387632. Its totient is φ = 537346434768.

The previous prime is 1123542545483. The next prime is 1123542545527. The reversal of 1123542545516 is 6155452453211.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6106209395 + ... + 6106209578.

It is an arithmetic number, because the mean of its divisors is an integer number (170973865636).

Almost surely, 2^{1123542545516} is an apocalyptic number.

It is an amenable number.

1123542545516 is a deficient number, since it is larger than the sum of its proper divisors (928143842116).

1123542545516 is a wasteful number, since it uses less digits than its factorization.

1123542545516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12212419000 (or 12212418998 counting only the distinct ones).

The product of its digits is 720000, while the sum is 44.

Adding to 1123542545516 its reverse (6155452453211), we get a palindrome (7278994998727).

The spelling of 1123542545516 in words is "one trillion, one hundred twenty-three billion, five hundred forty-two million, five hundred forty-five thousand, five hundred sixteen".