2131213203200 has 108 divisors (see below), whose sum is σ = 5280467580528. Its totient is φ = 851615539200.

The previous prime is 2131213203181. The next prime is 2131213203227. The reversal of 2131213203200 is 23023121312.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6121820 + ... + 6460580.

Almost surely, 2^{2131213203200} is an apocalyptic number.

2131213203200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2131213203200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2640233790264).

2131213203200 is an abundant number, since it is smaller than the sum of its proper divisors (3149254377328).

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

2131213203200 is an equidigital number, since it uses as much as digits as its factorization.

2131213203200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339770 (or 339751 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2131213203200 its reverse (23023121312), we get a palindrome (2154236324512).

The spelling of 2131213203200 in words is "two trillion, one hundred thirty-one billion, two hundred thirteen million, two hundred three thousand, two hundred".