2103500540149 has 2 divisors, whose sum is σ = 2103500540150. Its totient is φ = 2103500540148.

The previous prime is 2103500540111. The next prime is 2103500540173. The reversal of 2103500540149 is 9410450053012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1620083480625 + 483417059524 = 1272825^2 + 695282^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103500540149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2103500540549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051750270074 + 1051750270075.

It is an arithmetic number, because the mean of its divisors is an integer number (1051750270075).

Almost surely, 2^{2103500540149} is an apocalyptic number.

It is an amenable number.

2103500540149 is a deficient number, since it is larger than the sum of its proper divisors (1).

2103500540149 is an equidigital number, since it uses as much as digits as its factorization.

2103500540149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 2103500540149 in words is "two trillion, one hundred three billion, five hundred million, five hundred forty thousand, one hundred forty-nine".