2120031313243 has 2 divisors, whose sum is σ = 2120031313244. Its totient is φ = 2120031313242.

The previous prime is 2120031313181. The next prime is 2120031313307. The reversal of 2120031313243 is 3423131300212.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120031313243 is a prime.

It is not a weakly prime, because it can be changed into another prime (2120031313643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060015656621 + 1060015656622.

It is an arithmetic number, because the mean of its divisors is an integer number (1060015656622).

Almost surely, 2^{2120031313243} is an apocalyptic number.

2120031313243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120031313243 is an equidigital number, since it uses as much as digits as its factorization.

2120031313243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2120031313243 its reverse (3423131300212), we get a palindrome (5543162613455).

The spelling of 2120031313243 in words is "two trillion, one hundred twenty billion, thirty-one million, three hundred thirteen thousand, two hundred forty-three".