1123466561 has 12 divisors (see below), whose sum is σ = 1375674480. Its totient is φ = 912287880.

The previous prime is 1123466497. The next prime is 1123466623. The reversal of 1123466561 is 1656643211.

It is not a de Polignac number, because 1123466561 - 2⁶ = 1123466497 is a prime.

It is a super-2 number, since 2×1123466561² = 2524354227370333442, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123466761) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 602435 + ... + 604296.

It is an arithmetic number, because the mean of its divisors is an integer number (114639540).

Almost surely, 2^1123466561 is an apocalyptic number.

It is an amenable number.

1123466561 is a deficient number, since it is larger than the sum of its proper divisors (252207919).

1123466561 is a wasteful number, since it uses less digits than its factorization.

1123466561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206764 (or 1206757 counting only the distinct ones).

The product of its digits is 25920, while the sum is 35.

The square root of 1123466561 is about 33518.1527086443. The cubic root of 1123466561 is about 1039.5691512304.

The spelling of 1123466561 in words is "one billion, one hundred twenty-three million, four hundred sixty-six thousand, five hundred sixty-one".