1123211021023 has 16 divisors (see below), whose sum is σ = 1383889030720. Its totient is φ = 887745920256.

The previous prime is 1123211020889. The next prime is 1123211021069. The reversal of 1123211021023 is 3201201123211.

It is not a de Polignac number, because 1123211021023 - 2¹³ = 1123211012831 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123211001023) 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 15 ways as a sum of consecutive naturals, for example, 6501168 + ... + 6671701.

It is an arithmetic number, because the mean of its divisors is an integer number (86493064420).

Almost surely, 2^{1123211021023} is an apocalyptic number.

1123211021023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1123211021023 is a deficient number, since it is larger than the sum of its proper divisors (260678009697).

1123211021023 is a wasteful number, since it uses less digits than its factorization.

1123211021023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13173826.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1123211021023 its reverse (3201201123211), we get a palindrome (4324412144234).

The spelling of 1123211021023 in words is "one trillion, one hundred twenty-three billion, two hundred eleven million, twenty-one thousand, twenty-three".