2621212343 has 2 divisors, whose sum is σ = 2621212344. Its totient is φ = 2621212342.

The previous prime is 2621212339. The next prime is 2621212397. The reversal of 2621212343 is 3432121262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2621212343 - 2² = 2621212339 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2621212543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1310606171 + 1310606172.

It is an arithmetic number, because the mean of its divisors is an integer number (1310606172).

Almost surely, 2^2621212343 is an apocalyptic number.

2621212343 is a deficient number, since it is larger than the sum of its proper divisors (1).

2621212343 is an equidigital number, since it uses as much as digits as its factorization.

2621212343 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 26.

The square root of 2621212343 is about 51197.7767388390. The cubic root of 2621212343 is about 1378.7982857401.

The spelling of 2621212343 in words is "two billion, six hundred twenty-one million, two hundred twelve thousand, three hundred forty-three".