211320023213011 has 4 divisors (see below), whose sum is σ = 211327208310024. Its totient is φ = 211312838116000.

The previous prime is 211320023213009. The next prime is 211320023213029. The reversal of 211320023213011 is 110312320023112.

211320023213011 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 211320023213011 - 2¹ = 211320023213009 is a prime.

It is a super-3 number, since 3×211320023213011³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211320023223011) 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, 3592504390 + ... + 3592563211.

It is an arithmetic number, because the mean of its divisors is an integer number (52831802077506).

Almost surely, 2^{211320023213011} is an apocalyptic number.

211320023213011 is a deficient number, since it is larger than the sum of its proper divisors (7185097013).

211320023213011 is an equidigital number, since it uses as much as digits as its factorization.

211320023213011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7185097012.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 211320023213011 its reverse (110312320023112), we get a palindrome (321632343236123).

The spelling of 211320023213011 in words is "two hundred eleven trillion, three hundred twenty billion, twenty-three million, two hundred thirteen thousand, eleven".