2102321000 has 64 divisors (see below), whose sum is σ = 5297881680. Its totient is φ = 776236800.

The previous prime is 2102320991. The next prime is 2102321051. The reversal of 2102321000 is 1232012.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 41705764 + 2060615236 = 6458^2 + 45394^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67859 + ... + 93858.

Almost surely, 2^2102321000 is an apocalyptic number.

2102321000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2102321000 is an abundant number, since it is smaller than the sum of its proper divisors (3195560680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2102321000 is a wasteful number, since it uses less digits than its factorization.

2102321000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161751 (or 161737 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2102321000 is about 45851.0741422706. The cubic root of 2102321000 is about 1281.0507729095.

Adding to 2102321000 its reverse (1232012), we get a palindrome (2103553012).

The spelling of 2102321000 in words is "two billion, one hundred two million, three hundred twenty-one thousand".