2100211321 has 8 divisors (see below), whose sum is σ = 2262294720. Its totient is φ = 1938203472.

The previous prime is 2100211283. The next prime is 2100211327. The reversal of 2100211321 is 1231120012.

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 2100211321 - 2⁷ = 2100211193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2100211327) 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, 47526 + ... + 80368.

It is an arithmetic number, because the mean of its divisors is an integer number (282786840).

Almost surely, 2^2100211321 is an apocalyptic number.

It is an amenable number.

2100211321 is a deficient number, since it is larger than the sum of its proper divisors (162083399).

2100211321 is a wasteful number, since it uses less digits than its factorization.

2100211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37775.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 2100211321 is about 45828.0625926953. The cubic root of 2100211321 is about 1280.6221180340.

Adding to 2100211321 its reverse (1231120012), we get a palindrome (3331331333).

It can be divided in two parts, 21002 and 11321, that added together give a palindrome (32323).

The spelling of 2100211321 in words is "two billion, one hundred million, two hundred eleven thousand, three hundred twenty-one".