9203815020841 has 27 divisors (see below), whose sum is σ = 10962344632221. Its totient is φ = 7704755040024.

The previous prime is 9203815020823. The next prime is 9203815020871. The reversal of 9203815020841 is 1480205183029.

The square root of 9203815020841 is 3033779.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 9203815020841 - 2⁷ = 9203815020713 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9203815020811) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 913162440 + ... + 913172518.

Almost surely, 2^{9203815020841} is an apocalyptic number.

9203815020841 is the 3033779-th square number.

9203815020841 is the 1516890-th centered octagonal number.

It is an amenable number.

9203815020841 is a deficient number, since it is larger than the sum of its proper divisors (1758529611380).

9203815020841 is an frugal number, since it uses more digits than its factorization.

9203815020841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20258 (or 10129 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 43.

The spelling of 9203815020841 in words is "nine trillion, two hundred three billion, eight hundred fifteen million, twenty thousand, eight hundred forty-one".