11131303220999 has 4 divisors (see below), whose sum is σ = 11987557314936. Its totient is φ = 10275049127064.

The previous prime is 11131303220993. The next prime is 11131303221029. The reversal of 11131303220999 is 99902230313111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11131303220999 - 2⁸ = 11131303220743 is a prime.

It is a super-2 number, since 2×11131303220999² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131303220993) 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, 428127046949 + ... + 428127046974.

It is an arithmetic number, because the mean of its divisors is an integer number (2996889328734).

Almost surely, 2^{11131303220999} is an apocalyptic number.

11131303220999 is a deficient number, since it is larger than the sum of its proper divisors (856254093937).

11131303220999 is an equidigital number, since it uses as much as digits as its factorization.

11131303220999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856254093936.

The product of its (nonzero) digits is 78732, while the sum is 44.

The spelling of 11131303220999 in words is "eleven trillion, one hundred thirty-one billion, three hundred three million, two hundred twenty thousand, nine hundred ninety-nine".