1005132123 has 12 divisors (see below), whose sum is σ = 1537261128.
Its totient is φ = 630671040.
The previous prime is 1005132113. The next prime is 1005132151. The reversal of 1005132123 is 3212315001.
It is not a de Polignac number, because 1005132123 - 217 = 1005001051 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 1005132096 and 1005132105.
It is not an unprimeable number, because it can be changed into a prime (1005132113) 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, 3284593 + ... + 3284898.
It is an arithmetic number, because the mean of its divisors is an integer number (128105094).
Almost surely, 21005132123 is an apocalyptic number.
1005132123 is a deficient number, since it is larger than the sum of its proper divisors (532129005).
1005132123 is a wasteful number, since it uses less digits than its factorization.
1005132123 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 6569514 (or 6569511 counting only the distinct ones).
The product of its (nonzero) digits is 180, while the sum is 18.
The square root of 1005132123 is about 31703.8187447506.
The cubic root of 1005132123 is about 1001.7077894615.
Adding to 1005132123 its reverse (3212315001), we get a palindrome (4217447124).
The spelling of 1005132123 in words is "one billion, five million, one hundred thirty-two thousand, one hundred twenty-three".