211421130321 has 8 divisors (see below), whose sum is σ = 281904052320. Its totient is φ = 140942814272.

The previous prime is 211421130317. The next prime is 211421130337. The reversal of 211421130321 is 123031124112.

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 211421130321 - 2² = 211421130317 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211421130421) 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, 1042920 + ... + 1229033.

It is an arithmetic number, because the mean of its divisors is an integer number (35238006540).

Almost surely, 2^211421130321 is an apocalyptic number.

It is an amenable number.

211421130321 is a deficient number, since it is larger than the sum of its proper divisors (70482921999).

211421130321 is a wasteful number, since it uses less digits than its factorization.

211421130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2302975.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 211421130321 its reverse (123031124112), we get a palindrome (334452254433).

The spelling of 211421130321 in words is "two hundred eleven billion, four hundred twenty-one million, one hundred thirty thousand, three hundred twenty-one".