1020200209975 has 12 divisors (see below), whose sum is σ = 1273538521800. Its totient is φ = 810682580000.

The previous prime is 1020200209961. The next prime is 1020200209981. The reversal of 1020200209975 is 5799020020201.

It is not a de Polignac number, because 1020200209975 - 2²⁹ = 1019663339063 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136935901 + ... + 136943350.

It is an arithmetic number, because the mean of its divisors is an integer number (106128210150).

Almost surely, 2^{1020200209975} is an apocalyptic number.

1020200209975 is a deficient number, since it is larger than the sum of its proper divisors (253338311825).

1020200209975 is a wasteful number, since it uses less digits than its factorization.

1020200209975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273879410 (or 273879405 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 37.

The spelling of 1020200209975 in words is "one trillion, twenty billion, two hundred million, two hundred nine thousand, nine hundred seventy-five".