20203351870025 has 12 divisors (see below), whose sum is σ = 25057056175452. Its totient is φ = 16159520298240.

The previous prime is 20203351870003. The next prime is 20203351870033. The reversal of 20203351870025 is 52007815330202.

It can be written as a sum of positive squares in 6 ways, for example, as 3037146193081 + 17166205676944 = 1742741^2 + 4143212^2 .

It is not a de Polignac number, because 20203351870025 - 2⁸ = 20203351869769 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78899564 + ... + 79155213.

It is an arithmetic number, because the mean of its divisors is an integer number (2088088014621).

Almost surely, 2^{20203351870025} is an apocalyptic number.

20203351870025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20203351870025 is a deficient number, since it is larger than the sum of its proper divisors (4853704305427).

20203351870025 is a wasteful number, since it uses less digits than its factorization.

20203351870025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158059900 (or 158059895 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 20203351870025 in words is "twenty trillion, two hundred three billion, three hundred fifty-one million, eight hundred seventy thousand, twenty-five".