1125001123 has 8 divisors (see below), whose sum is σ = 1140823008. Its totient is φ = 1109273664.

The previous prime is 1125001117. The next prime is 1125001211. The reversal of 1125001123 is 3211005211.

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 1125001123 - 2²⁹ = 588130211 is a prime.

It is a super-2 number, since 2×1125001123² = 2531255053502522258, 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 = 1125001097 and 1125001106.

It is not an unprimeable number, because it can be changed into a prime (1125001523) 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, 561 + ... + 47437.

It is an arithmetic number, because the mean of its divisors is an integer number (142602876).

Almost surely, 2^1125001123 is an apocalyptic number.

1125001123 is a deficient number, since it is larger than the sum of its proper divisors (15821885).

1125001123 is a wasteful number, since it uses less digits than its factorization.

1125001123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47213.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 1125001123 is about 33541.0364031883. The cubic root of 1125001123 is about 1040.0422575902.

Adding to 1125001123 its reverse (3211005211), we get a palindrome (4336006334).

The spelling of 1125001123 in words is "one billion, one hundred twenty-five million, one thousand, one hundred twenty-three".