1122321031 has 4 divisors (see below), whose sum is σ = 1208653432. Its totient is φ = 1035988632.

The previous prime is 1122321029. The next prime is 1122321043. The reversal of 1122321031 is 1301232211.

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 1122321031 - 2¹ = 1122321029 is a prime.

It is a super-2 number, since 2×1122321031² = 2519208993249805922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1122320996 and 1122321014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122321631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43166181 + ... + 43166206.

It is an arithmetic number, because the mean of its divisors is an integer number (302163358).

Almost surely, 2^1122321031 is an apocalyptic number.

1122321031 is a deficient number, since it is larger than the sum of its proper divisors (86332401).

1122321031 is an equidigital number, since it uses as much as digits as its factorization.

1122321031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86332400.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1122321031 is about 33501.0601474043. The cubic root of 1122321031 is about 1039.2157027556.

Adding to 1122321031 its reverse (1301232211), we get a palindrome (2423553242).

The spelling of 1122321031 in words is "one billion, one hundred twenty-two million, three hundred twenty-one thousand, thirty-one".