211302320011 has 4 divisors (see below), whose sum is σ = 211319580024. Its totient is φ = 211285060000.

The previous prime is 211302319967. The next prime is 211302320023. The reversal of 211302320011 is 110023203112.

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 211302320011 - 2³⁷ = 73863366539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211302320051) 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, 8611630 + ... + 8636131.

It is an arithmetic number, because the mean of its divisors is an integer number (52829895006).

Almost surely, 2^211302320011 is an apocalyptic number.

211302320011 is a deficient number, since it is larger than the sum of its proper divisors (17260013).

211302320011 is a wasteful number, since it uses less digits than its factorization.

211302320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17260012.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 211302320011 its reverse (110023203112), we get a palindrome (321325523123).

The spelling of 211302320011 in words is "two hundred eleven billion, three hundred two million, three hundred twenty thousand, eleven".