1123300130021 has 4 divisors (see below), whose sum is σ = 1123348820844. Its totient is φ = 1123251439200.

The previous prime is 1123300130009. The next prime is 1123300130023. The reversal of 1123300130021 is 1200310033211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 921619200100 + 201680929921 = 960010^2 + 449089^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123300130021 - 2⁶ = 1123300129957 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 (1123300130023) 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, 24310790 + ... + 24356951.

It is an arithmetic number, because the mean of its divisors is an integer number (280837205211).

Almost surely, 2^{1123300130021} is an apocalyptic number.

It is an amenable number.

1123300130021 is a deficient number, since it is larger than the sum of its proper divisors (48690823).

1123300130021 is an equidigital number, since it uses as much as digits as its factorization.

1123300130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48690822.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1123300130021 its reverse (1200310033211), we get a palindrome (2323610163232).

The spelling of 1123300130021 in words is "one trillion, one hundred twenty-three billion, three hundred million, one hundred thirty thousand, twenty-one".