11312021021011 has 4 divisors (see below), whose sum is σ = 11525455379952. Its totient is φ = 11098586662072.

The previous prime is 11312021020939. The next prime is 11312021021039. The reversal of 11312021021011 is 11012012021311.

It is a happy number.

11312021021011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11312021021011 - 2³¹ = 11309873537363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312021021111) 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, 106717179391 + ... + 106717179496.

It is an arithmetic number, because the mean of its divisors is an integer number (2881363844988).

Almost surely, 2^{11312021021011} is an apocalyptic number.

11312021021011 is a deficient number, since it is larger than the sum of its proper divisors (213434358941).

11312021021011 is an equidigital number, since it uses as much as digits as its factorization.

11312021021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213434358940.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11312021021011 its reverse (11012012021311), we get a palindrome (22324033042322).

The spelling of 11312021021011 in words is "eleven trillion, three hundred twelve billion, twenty-one million, twenty-one thousand, eleven".