1122031013 has 4 divisors (see below), whose sum is σ = 1123130988. Its totient is φ = 1120931040.

The previous prime is 1122031003. The next prime is 1122031021. The reversal of 1122031013 is 3101302211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3101302211 = 7 ⋅443043173.

It can be written as a sum of positive squares in 2 ways, for example, as 480574084 + 641456929 = 21922^2 + 25327^2 .

It is a cyclic number.

It is not a de Polignac number, because 1122031013 - 2⁸ = 1122030757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122031003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 548456 + ... + 550497.

It is an arithmetic number, because the mean of its divisors is an integer number (280782747).

Almost surely, 2^1122031013 is an apocalyptic number.

It is an amenable number.

1122031013 is a deficient number, since it is larger than the sum of its proper divisors (1099975).

1122031013 is a wasteful number, since it uses less digits than its factorization.

1122031013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099974.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1122031013 is about 33496.7313778524. The cubic root of 1122031013 is about 1039.1261807692.

Adding to 1122031013 its reverse (3101302211), we get a palindrome (4223333224).

The spelling of 1122031013 in words is "one billion, one hundred twenty-two million, thirty-one thousand, thirteen".