11131220301 has 4 divisors (see below), whose sum is σ = 14841627072. Its totient is φ = 7420813532.

The previous prime is 11131220297. The next prime is 11131220329. The reversal of 11131220301 is 10302213111.

It is a happy number.

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 a cyclic number.

It is not a de Polignac number, because 11131220301 - 2² = 11131220297 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131220801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855203381 + ... + 1855203386.

It is an arithmetic number, because the mean of its divisors is an integer number (3710406768).

Almost surely, 2^11131220301 is an apocalyptic number.

It is an amenable number.

11131220301 is a deficient number, since it is larger than the sum of its proper divisors (3710406771).

11131220301 is an equidigital number, since it uses as much as digits as its factorization.

11131220301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710406770.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11131220301 its reverse (10302213111), we get a palindrome (21433433412).

The spelling of 11131220301 in words is "eleven billion, one hundred thirty-one million, two hundred twenty thousand, three hundred one".