2643351321131 has 4 divisors (see below), whose sum is σ = 2682804325992. Its totient is φ = 2603898316272.

The previous prime is 2643351321113. The next prime is 2643351321133. The reversal of 2643351321131 is 1311231533462.

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

It is a cyclic number.

It is not a de Polignac number, because 2643351321131 - 2⁶ = 2643351321067 is a prime.

It is a super-2 number, since 2×2643351321131² (a number of 26 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 = 2643351321091 and 2643351321100.

It is not an unprimeable number, because it can be changed into a prime (2643351321133) 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 3 ways as a sum of consecutive naturals, for example, 19726502330 + ... + 19726502463.

It is an arithmetic number, because the mean of its divisors is an integer number (670701081498).

Almost surely, 2^{2643351321131} is an apocalyptic number.

2643351321131 is a deficient number, since it is larger than the sum of its proper divisors (39453004861).

2643351321131 is an equidigital number, since it uses as much as digits as its factorization.

2643351321131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39453004860.

The product of its digits is 38880, while the sum is 35.

Adding to 2643351321131 its reverse (1311231533462), we get a palindrome (3954582854593).

The spelling of 2643351321131 in words is "two trillion, six hundred forty-three billion, three hundred fifty-one million, three hundred twenty-one thousand, one hundred thirty-one".