11420220321001 has 4 divisors (see below), whose sum is σ = 11420229599104. Its totient is φ = 11420211042900.

The previous prime is 11420220320987. The next prime is 11420220321019. The reversal of 11420220321001 is 10012302202411.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11420220321001 is a prime.

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 11420220321001.

It is not an unprimeable number, because it can be changed into a prime (11420220321401) 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, 2447685 + ... + 5369506.

It is an arithmetic number, because the mean of its divisors is an integer number (2855057399776).

Almost surely, 2^{11420220321001} is an apocalyptic number.

It is an amenable number.

11420220321001 is a deficient number, since it is larger than the sum of its proper divisors (9278103).

11420220321001 is an equidigital number, since it uses as much as digits as its factorization.

11420220321001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9278102.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11420220321001 its reverse (10012302202411), we get a palindrome (21432522523412).

The spelling of 11420220321001 in words is "eleven trillion, four hundred twenty billion, two hundred twenty million, three hundred twenty-one thousand, one".