1123101545 has 4 divisors (see below), whose sum is σ = 1347721860. Its totient is φ = 898481232.

The previous prime is 1123101527. The next prime is 1123101559. The reversal of 1123101545 is 5451013211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 131859289 + 991242256 = 11483^2 + 31484^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123101545 - 2¹⁰ = 1123100521 is a prime.

It is a super-2 number, since 2×1123101545² = 2522714160762774050, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1123101545.

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, 112310150 + ... + 112310159.

It is an arithmetic number, because the mean of its divisors is an integer number (336930465).

Almost surely, 2^1123101545 is an apocalyptic number.

It is an amenable number.

1123101545 is a deficient number, since it is larger than the sum of its proper divisors (224620315).

1123101545 is an equidigital number, since it uses as much as digits as its factorization.

1123101545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224620314.

The product of its (nonzero) digits is 600, while the sum is 23.

The square root of 1123101545 is about 33512.7072168155. The cubic root of 1123101545 is about 1039.4565531672.

Adding to 1123101545 its reverse (5451013211), we get a palindrome (6574114756).

The spelling of 1123101545 in words is "one billion, one hundred twenty-three million, one hundred one thousand, five hundred forty-five".