20311211033301 has 4 divisors (see below), whose sum is σ = 27081614711072. Its totient is φ = 13540807355532.

The previous prime is 20311211033291. The next prime is 20311211033339. The reversal of 20311211033301 is 10333011211302.

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 not a de Polignac number, because 20311211033301 - 2¹⁵ = 20311211000533 is a prime.

It is a super-2 number, since 2×20311211033301² (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 (20311211033381) 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, 3385201838881 + ... + 3385201838886.

It is an arithmetic number, because the mean of its divisors is an integer number (6770403677768).

Almost surely, 2^{20311211033301} is an apocalyptic number.

It is an amenable number.

20311211033301 is a deficient number, since it is larger than the sum of its proper divisors (6770403677771).

20311211033301 is an equidigital number, since it uses as much as digits as its factorization.

20311211033301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6770403677770.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20311211033301 its reverse (10333011211302), we get a palindrome (30644222244603).

The spelling of 20311211033301 in words is "twenty trillion, three hundred eleven billion, two hundred eleven million, thirty-three thousand, three hundred one".