1123001010 has 80 divisors (see below), whose sum is σ = 3050968536. Its totient is φ = 296358912.

The previous prime is 1123000999. The next prime is 1123001027. The reversal of 1123001010 is 101003211.

It can be written as a sum of positive squares in 4 ways, for example, as 486599481 + 636401529 = 22059^2 + 25227^2 .

It is a super-2 number, since 2×1123001010² = 2522262536922040200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1123000983 and 1123001001.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 71424 + ... + 85716.

Almost surely, 2^1123001010 is an apocalyptic number.

1123001010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1123001010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1525484268).

1123001010 is an abundant number, since it is smaller than the sum of its proper divisors (1927967526).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1123001010 is a wasteful number, since it uses less digits than its factorization.

1123001010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14409 (or 14400 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 1123001010 is about 33511.2072298209. The cubic root of 1123001010 is about 1039.4255364162.

Adding to 1123001010 its reverse (101003211), we get a palindrome (1224004221).

The spelling of 1123001010 in words is "one billion, one hundred twenty-three million, one thousand, ten".