211030020321 has 8 divisors (see below), whose sum is σ = 282289887264. Its totient is φ = 140228416800.

The previous prime is 211030020307. The next prime is 211030020329. The reversal of 211030020321 is 123020030112.

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

It is not a de Polignac number, because 211030020321 - 2³⁷ = 73591066849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211030020321.

It is not an unprimeable number, because it can be changed into a prime (211030020329) 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, 114564780 + ... + 114566621.

It is an arithmetic number, because the mean of its divisors is an integer number (35286235908).

Almost surely, 2^211030020321 is an apocalyptic number.

It is an amenable number.

211030020321 is a deficient number, since it is larger than the sum of its proper divisors (71259866943).

211030020321 is a wasteful number, since it uses less digits than its factorization.

211030020321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229131711.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 211030020321 its reverse (123020030112), we get a palindrome (334050050433).

The spelling of 211030020321 in words is "two hundred eleven billion, thirty million, twenty thousand, three hundred twenty-one".