21320133003111 has 4 divisors (see below), whose sum is σ = 28426844004152. Its totient is φ = 14213422002072.

The previous prime is 21320133003097. The next prime is 21320133003131. The reversal of 21320133003111 is 11130033102312.

It is a happy number.

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

It is not a de Polignac number, because 21320133003111 - 2⁹ = 21320133002599 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21320133003131) 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, 3553355500516 + ... + 3553355500521.

It is an arithmetic number, because the mean of its divisors is an integer number (7106711001038).

Almost surely, 2^{21320133003111} is an apocalyptic number.

21320133003111 is a deficient number, since it is larger than the sum of its proper divisors (7106711001041).

21320133003111 is an equidigital number, since it uses as much as digits as its factorization.

21320133003111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7106711001040.

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

Adding to 21320133003111 its reverse (11130033102312), we get a palindrome (32450166105423).

The spelling of 21320133003111 in words is "twenty-one trillion, three hundred twenty billion, one hundred thirty-three million, three thousand, one hundred eleven".