1101223321031 has 4 divisors (see below), whose sum is σ = 1128082426464. Its totient is φ = 1074364215600.

The previous prime is 1101223321019. The next prime is 1101223321049. The reversal of 1101223321031 is 1301233221011.

It is a happy number.

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 1101223321031 - 2¹⁴ = 1101223304647 is a prime.

It is a super-2 number, since 2×1101223321031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1101223320994 and 1101223321012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1101223321061) 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 3 ways as a sum of consecutive naturals, for example, 13429552655 + ... + 13429552736.

It is an arithmetic number, because the mean of its divisors is an integer number (282020606616).

Almost surely, 2^{1101223321031} is an apocalyptic number.

1101223321031 is a deficient number, since it is larger than the sum of its proper divisors (26859105433).

1101223321031 is an equidigital number, since it uses as much as digits as its factorization.

1101223321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26859105432.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1101223321031 its reverse (1301233221011), we get a palindrome (2402456542042).

The spelling of 1101223321031 in words is "one trillion, one hundred one billion, two hundred twenty-three million, three hundred twenty-one thousand, thirty-one".