2101140321 has 64 divisors (see below), whose sum is σ = 3428904960. Its totient is φ = 1118557440.

The previous prime is 2101140299. The next prime is 2101140329. The reversal of 2101140321 is 1230411012.

It is not a de Polignac number, because 2101140321 - 2⁹ = 2101139809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101140321.

It is not an unprimeable number, because it can be changed into a prime (2101140329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5401195 + ... + 5401583.

It is an arithmetic number, because the mean of its divisors is an integer number (53576640).

Almost surely, 2^2101140321 is an apocalyptic number.

2101140321 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2101140321 is a deficient number, since it is larger than the sum of its proper divisors (1327764639).

2101140321 is a wasteful number, since it uses less digits than its factorization.

2101140321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 686.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2101140321 is about 45838.1971831354. The cubic root of 2101140321 is about 1280.8109121430.

Adding to 2101140321 its reverse (1230411012), we get a palindrome (3331551333).

The spelling of 2101140321 in words is "two billion, one hundred one million, one hundred forty thousand, three hundred twenty-one".