1122020013 has 4 divisors (see below), whose sum is σ = 1496026688. Its totient is φ = 748013340.

The previous prime is 1122019973. The next prime is 1122020021. The reversal of 1122020013 is 3100202211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3100202211 = 3 ⋅1033400737.

It is not a de Polignac number, because 1122020013 - 2³⁰ = 48278189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122020023) 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, 187003333 + ... + 187003338.

It is an arithmetic number, because the mean of its divisors is an integer number (374006672).

Almost surely, 2^1122020013 is an apocalyptic number.

It is an amenable number.

1122020013 is a deficient number, since it is larger than the sum of its proper divisors (374006675).

1122020013 is an equidigital number, since it uses as much as digits as its factorization.

1122020013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374006674.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1122020013 is about 33496.5671823248. The cubic root of 1122020013 is about 1039.1227850148.

Adding to 1122020013 its reverse (3100202211), we get a palindrome (4222222224).

The spelling of 1122020013 in words is "one billion, one hundred twenty-two million, twenty thousand, thirteen".