11213012103121 has 4 divisors (see below), whose sum is σ = 11214619249572. Its totient is φ = 11211404956672.

The previous prime is 11213012103109. The next prime is 11213012103187. The reversal of 11213012103121 is 12130121031211.

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 6761502883521 + 4451509219600 = 2600289^2 + 2109860^2 .

It is a cyclic number.

It is not a de Polignac number, because 11213012103121 - 2¹⁷ = 11213011972049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11213012103191) 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, 803562760 + ... + 803576713.

It is an arithmetic number, because the mean of its divisors is an integer number (2803654812393).

Almost surely, 2^{11213012103121} is an apocalyptic number.

It is an amenable number.

11213012103121 is a deficient number, since it is larger than the sum of its proper divisors (1607146451).

11213012103121 is an equidigital number, since it uses as much as digits as its factorization.

11213012103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1607146450.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 11213012103121 its reverse (12130121031211), we get a palindrome (23343133134332).

The spelling of 11213012103121 in words is "eleven trillion, two hundred thirteen billion, twelve million, one hundred three thousand, one hundred twenty-one".