1123020203013 has 24 divisors (see below), whose sum is σ = 1625225696640. Its totient is φ = 747257434560.

The previous prime is 1123020202979. The next prime is 1123020203017. The reversal of 1123020203013 is 3103020203211.

It is not a de Polignac number, because 1123020203013 - 2²¹ = 1123018105861 is a prime.

It is a super-2 number, since 2×1123020203013² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123020203017) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10268145 + ... + 10376937.

It is an arithmetic number, because the mean of its divisors is an integer number (67717737360).

Almost surely, 2^{1123020203013} is an apocalyptic number.

It is an amenable number.

1123020203013 is a deficient number, since it is larger than the sum of its proper divisors (502205493627).

1123020203013 is a wasteful number, since it uses less digits than its factorization.

1123020203013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110969 (or 110966 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1123020203013 its reverse (3103020203211), we get a palindrome (4226040406224).

The spelling of 1123020203013 in words is "one trillion, one hundred twenty-three billion, twenty million, two hundred three thousand, thirteen".