11205102000421 has 6 divisors (see below), whose sum is σ = 13034506408710. Its totient is φ = 9604373143176.

The previous prime is 11205102000413. The next prime is 11205102000437. The reversal of 11205102000421 is 12400020150211.

It can be written as a sum of positive squares in only one way, i.e., 5697702164196 + 5507399836225 = 2386986^2 + 2346785^2 .

It is not a de Polignac number, because 11205102000421 - 2³ = 11205102000413 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11205102000451) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 114337775466 + ... + 114337775563.

It is an arithmetic number, because the mean of its divisors is an integer number (2172417734785).

Almost surely, 2^{11205102000421} is an apocalyptic number.

It is an amenable number.

11205102000421 is a deficient number, since it is larger than the sum of its proper divisors (1829404408289).

11205102000421 is an equidigital number, since it uses as much as digits as its factorization.

11205102000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228675551043 (or 228675551036 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 11205102000421 its reverse (12400020150211), we get a palindrome (23605122150632).

The spelling of 11205102000421 in words is "eleven trillion, two hundred five billion, one hundred two million, four hundred twenty-one", and thus it is an aban number.