2131321223300 has 18 divisors (see below), whose sum is σ = 4624967054778. Its totient is φ = 852528489280.

The previous prime is 2131321223287. The next prime is 2131321223327. The reversal of 2131321223300 is 33221231312.

It can be written as a sum of positive squares in 3 ways, for example, as 11251269184 + 2120069954116 = 106072^2 + 1456046^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10656606017 + ... + 10656606216.

Almost surely, 2^{2131321223300} is an apocalyptic number.

2131321223300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131321223300 is an abundant number, since it is smaller than the sum of its proper divisors (2493645831478).

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

2131321223300 is a wasteful number, since it uses less digits than its factorization.

2131321223300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21313212247 (or 21313212240 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2131321223300 its reverse (33221231312), we get a palindrome (2164542454612).

The spelling of 2131321223300 in words is "two trillion, one hundred thirty-one billion, three hundred twenty-one million, two hundred twenty-three thousand, three hundred".