1123211322231 has 16 divisors (see below), whose sum is σ = 1561047775104. Its totient is φ = 717695329824.

The previous prime is 1123211322229. The next prime is 1123211322253. The reversal of 1123211322231 is 1322231123211.

It is not a de Polignac number, because 1123211322231 - 2¹ = 1123211322229 is a prime.

It is a super-2 number, since 2×1123211322231² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123211322931) 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 15 ways as a sum of consecutive naturals, for example, 75507645 + ... + 75522518.

It is an arithmetic number, because the mean of its divisors is an integer number (97565485944).

Almost surely, 2^{1123211322231} is an apocalyptic number.

1123211322231 is a deficient number, since it is larger than the sum of its proper divisors (437836452873).

1123211322231 is a wasteful number, since it uses less digits than its factorization.

1123211322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151030270.

The product of its digits is 864, while the sum is 24.

Adding to 1123211322231 its reverse (1322231123211), we get a palindrome (2445442445442).

The spelling of 1123211322231 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, three hundred twenty-two thousand, two hundred thirty-one".