2130321100 has 36 divisors (see below), whose sum is σ = 4635076600. Its totient is φ = 849864960.

The previous prime is 2130321043. The next prime is 2130321103. The reversal of 2130321100 is 11230312.

It is not an unprimeable number, because it can be changed into a prime (2130321103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9796 + ... + 66004.

Almost surely, 2^2130321100 is an apocalyptic number.

2130321100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130321100 is an abundant number, since it is smaller than the sum of its proper divisors (2504755500).

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

2130321100 is a wasteful number, since it uses less digits than its factorization.

2130321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56602 (or 56595 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2130321100 is about 46155.4016340450. The cubic root of 2130321100 is about 1286.7130025581.

Adding to 2130321100 its reverse (11230312), we get a palindrome (2141551412).

The spelling of 2130321100 in words is "two billion, one hundred thirty million, three hundred twenty-one thousand, one hundred".