211320113021 has 8 divisors (see below), whose sum is σ = 218669738400. Its totient is φ = 203974669360.

The previous prime is 211320112973. The next prime is 211320113033. The reversal of 211320113021 is 120311023112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211320113021 - 2⁶ = 211320112957 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 (211320913021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942431 + ... + 1144908.

It is an arithmetic number, because the mean of its divisors is an integer number (27333717300).

Almost surely, 2^211320113021 is an apocalyptic number.

It is an amenable number.

211320113021 is a deficient number, since it is larger than the sum of its proper divisors (7349625379).

211320113021 is a wasteful number, since it uses less digits than its factorization.

211320113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2090859.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 211320113021 its reverse (120311023112), we get a palindrome (331631136133).

The spelling of 211320113021 in words is "two hundred eleven billion, three hundred twenty million, one hundred thirteen thousand, twenty-one".