1121254123 has 6 divisors (see below), whose sum is σ = 1232453012. Its totient is φ = 1019321820.

The previous prime is 1121254103. The next prime is 1121254133. The reversal of 1121254123 is 3214521211.

It is a de Polignac number, because none of the positive numbers 2^k-1121254123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1121254094 and 1121254103.

It is not an unprimeable number, because it can be changed into a prime (1121254103) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4633161 + ... + 4633402.

Almost surely, 2^1121254123 is an apocalyptic number.

1121254123 is a deficient number, since it is larger than the sum of its proper divisors (111198889).

1121254123 is an equidigital number, since it uses as much as digits as its factorization.

1121254123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9266585 (or 9266574 counting only the distinct ones).

The product of its digits is 480, while the sum is 22.

The square root of 1121254123 is about 33485.1328651985. The cubic root of 1121254123 is about 1038.8862963924.

Adding to 1121254123 its reverse (3214521211), we get a palindrome (4335775334).

The spelling of 1121254123 in words is "one billion, one hundred twenty-one million, two hundred fifty-four thousand, one hundred twenty-three".