1123001123 has 8 divisors (see below), whose sum is σ = 1135244496. Its totient is φ = 1110780000.

The previous prime is 1123001057. The next prime is 1123001129. The reversal of 1123001123 is 3211003211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123001123 - 2¹⁸ = 1122738979 is a prime.

It is a super-2 number, since 2×1123001123² = 2522263044518522258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123001098 and 1123001107.

It is not an unprimeable number, because it can be changed into a prime (1123001129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108473 + ... + 118373.

It is an arithmetic number, because the mean of its divisors is an integer number (141905562).

Almost surely, 2^1123001123 is an apocalyptic number.

1123001123 is a deficient number, since it is larger than the sum of its proper divisors (12243373).

1123001123 is a wasteful number, since it uses less digits than its factorization.

1123001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11125.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1123001123 is about 33511.2089158240. The cubic root of 1123001123 is about 1039.4255712797.

Adding to 1123001123 its reverse (3211003211), we get a palindrome (4334004334).

It can be divided in two parts, 112300 and 1123, that multiplied together give a square (126112900 = 11230²).

The spelling of 1123001123 in words is "one billion, one hundred twenty-three million, one thousand, one hundred twenty-three".