2100213340 has 24 divisors (see below), whose sum is σ = 4422101040. Its totient is φ = 837865728.

The previous prime is 2100213287. The next prime is 2100213343. The reversal of 2100213340 is 433120012.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100213343) 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 7 ways as a sum of consecutive naturals, for example, 130957 + ... + 146116.

It is an arithmetic number, because the mean of its divisors is an integer number (184254210).

Almost surely, 2^2100213340 is an apocalyptic number.

2100213340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100213340 is an abundant number, since it is smaller than the sum of its proper divisors (2321887700).

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

2100213340 is a wasteful number, since it uses less digits than its factorization.

2100213340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277461 (or 277459 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2100213340 is about 45828.0846206777. The cubic root of 2100213340 is about 1280.6225284015.

Adding to 2100213340 its reverse (433120012), we get a palindrome (2533333352).

The spelling of 2100213340 in words is "two billion, one hundred million, two hundred thirteen thousand, three hundred forty".