1123212123211 has 8 divisors (see below), whose sum is σ = 1134448612848. Its totient is φ = 1111977900000.

The previous prime is 1123212123191. The next prime is 1123212123217.

It is a happy number.

1123212123211 is nontrivially palindromic in base 10.

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 1123212123211 - 2⁵ = 1123212123179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123212123217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 438396 + ... + 1561606.

It is an arithmetic number, because the mean of its divisors is an integer number (141806076606).

Almost surely, 2^{1123212123211} is an apocalyptic number.

1123212123211 is a deficient number, since it is larger than the sum of its proper divisors (11236489637).

1123212123211 is a wasteful number, since it uses less digits than its factorization.

1123212123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133213.

The product of its digits is 288, while the sum is 22.

The spelling of 1123212123211 in words is "one trillion, one hundred twenty-three billion, two hundred twelve million, one hundred twenty-three thousand, two hundred eleven".