2131324100 has 18 divisors (see below), whose sum is σ = 4624973514. Its totient is φ = 852529600.

The previous prime is 2131324099. The next prime is 2131324127. The reversal of 2131324100 is 14231312.

It can be written as a sum of positive squares in 3 ways, for example, as 18267076 + 2113057024 = 4274^2 + 45968^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10656521 + ... + 10656720.

It is an arithmetic number, because the mean of its divisors is an integer number (256942973).

Almost surely, 2^2131324100 is an apocalyptic number.

2131324100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131324100 is an abundant number, since it is smaller than the sum of its proper divisors (2493649414).

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

2131324100 is a wasteful number, since it uses less digits than its factorization.

2131324100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21313255 (or 21313248 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2131324100 is about 46166.2658225679. The cubic root of 2131324100 is about 1286.9149080598.

Adding to 2131324100 its reverse (14231312), we get a palindrome (2145555412).

The spelling of 2131324100 in words is "two billion, one hundred thirty-one million, three hundred twenty-four thousand, one hundred".