11211120303331 has 4 divisors (see below), whose sum is σ = 12073514172832. Its totient is φ = 10348726433832.

The previous prime is 11211120303293. The next prime is 11211120303373. The reversal of 11211120303331 is 13330302111211.

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 11211120303331 - 2¹⁹ = 11211119779043 is a prime.

It is a super-2 number, since 2×11211120303331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11211120301331) 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, 431196934731 + ... + 431196934756.

It is an arithmetic number, because the mean of its divisors is an integer number (3018378543208).

Almost surely, 2^{11211120303331} is an apocalyptic number.

11211120303331 is a deficient number, since it is larger than the sum of its proper divisors (862393869501).

11211120303331 is an equidigital number, since it uses as much as digits as its factorization.

11211120303331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862393869500.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 11211120303331 its reverse (13330302111211), we get a palindrome (24541422414542).

The spelling of 11211120303331 in words is "eleven trillion, two hundred eleven billion, one hundred twenty million, three hundred three thousand, three hundred thirty-one".