11421111313 has 8 divisors (see below), whose sum is σ = 11627695016. Its totient is φ = 11215152000.

The previous prime is 11421111287. The next prime is 11421111329. The reversal of 11421111313 is 31311112411.

It can be written as a sum of positive squares in 4 ways, for example, as 4154060304 + 7267051009 = 64452^2 + 85247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11421111313 - 2³³ = 2831176721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11421111353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 119106 + ... + 192427.

It is an arithmetic number, because the mean of its divisors is an integer number (1453461877).

Almost surely, 2^11421111313 is an apocalyptic number.

It is an amenable number.

11421111313 is a deficient number, since it is larger than the sum of its proper divisors (206583703).

11421111313 is an equidigital number, since it uses as much as digits as its factorization.

11421111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312195.

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

Adding to 11421111313 its reverse (31311112411), we get a palindrome (42732223724).

The spelling of 11421111313 in words is "eleven billion, four hundred twenty-one million, one hundred eleven thousand, three hundred thirteen".