1125115123211 has 4 divisors (see below), whose sum is σ = 1141907886312. Its totient is φ = 1108322360112.

The previous prime is 1125115123199. The next prime is 1125115123241. The reversal of 1125115123211 is 1123215115211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1125115123211 - 2¹⁴ = 1125115106827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1125115123241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8396381450 + ... + 8396381583.

It is an arithmetic number, because the mean of its divisors is an integer number (285476971578).

Almost surely, 2^{1125115123211} is an apocalyptic number.

1125115123211 is a deficient number, since it is larger than the sum of its proper divisors (16792763101).

1125115123211 is an equidigital number, since it uses as much as digits as its factorization.

1125115123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16792763100.

The product of its digits is 600, while the sum is 26.

The spelling of 1125115123211 in words is "one trillion, one hundred twenty-five billion, one hundred fifteen million, one hundred twenty-three thousand, two hundred eleven".