2120103113539 has 2 divisors, whose sum is σ = 2120103113540. Its totient is φ = 2120103113538.

The previous prime is 2120103113533. The next prime is 2120103113561. The reversal of 2120103113539 is 9353113010212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2120103113539 - 2⁹ = 2120103113027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120103113539.

It is not a weakly prime, because it can be changed into another prime (2120103113533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060051556769 + 1060051556770.

It is an arithmetic number, because the mean of its divisors is an integer number (1060051556770).

Almost surely, 2^{2120103113539} is an apocalyptic number.

2120103113539 is a deficient number, since it is larger than the sum of its proper divisors (1).

2120103113539 is an equidigital number, since it uses as much as digits as its factorization.

2120103113539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 31.

The spelling of 2120103113539 in words is "two trillion, one hundred twenty billion, one hundred three million, one hundred thirteen thousand, five hundred thirty-nine".