1121023023213 has 4 divisors (see below), whose sum is σ = 1494697364288. Its totient is φ = 747348682140.

The previous prime is 1121023023187. The next prime is 1121023023221. The reversal of 1121023023213 is 3123203201211.

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.

It is not a de Polignac number, because 1121023023213 - 2¹² = 1121023019117 is a prime.

It is a super-2 number, since 2×1121023023213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1121023023213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121023023293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186837170533 + ... + 186837170538.

It is an arithmetic number, because the mean of its divisors is an integer number (373674341072).

Almost surely, 2^{1121023023213} is an apocalyptic number.

It is an amenable number.

1121023023213 is a deficient number, since it is larger than the sum of its proper divisors (373674341075).

1121023023213 is an equidigital number, since it uses as much as digits as its factorization.

1121023023213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373674341074.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1121023023213 its reverse (3123203201211), we get a palindrome (4244226224424).

The spelling of 1121023023213 in words is "one trillion, one hundred twenty-one billion, twenty-three million, twenty-three thousand, two hundred thirteen".