2131340330323 has 4 divisors (see below), whose sum is σ = 2131346129760. Its totient is φ = 2131334530888.

The previous prime is 2131340330297. The next prime is 2131340330351. The reversal of 2131340330323 is 3230330431312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131340330323 is a prime.

It is a super-2 number, since 2×2131340330323² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131340330291 and 2131340330300.

It is not an unprimeable number, because it can be changed into a prime (2131340330923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2308240 + ... + 3096877.

It is an arithmetic number, because the mean of its divisors is an integer number (532836532440).

Almost surely, 2^{2131340330323} is an apocalyptic number.

2131340330323 is a deficient number, since it is larger than the sum of its proper divisors (5799437).

2131340330323 is an equidigital number, since it uses as much as digits as its factorization.

2131340330323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5799436.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 2131340330323 its reverse (3230330431312), we get a palindrome (5361670761635).

It can be divided in two parts, 21313 and 40330323, that added together give a triangular number (40351636 = T₈₉₈₃).

The spelling of 2131340330323 in words is "two trillion, one hundred thirty-one billion, three hundred forty million, three hundred thirty thousand, three hundred twenty-three".