10204021535 has 16 divisors (see below), whose sum is σ = 13305077760. Its totient is φ = 7484101920.

The previous prime is 10204021489. The next prime is 10204021547. The reversal of 10204021535 is 53512040201.

It is not a de Polignac number, because 10204021535 - 2⁸ = 10204021279 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10204021535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1729487 + ... + 1735376.

It is an arithmetic number, because the mean of its divisors is an integer number (831567360).

Almost surely, 2^10204021535 is an apocalyptic number.

10204021535 is a deficient number, since it is larger than the sum of its proper divisors (3101056225).

10204021535 is a wasteful number, since it uses less digits than its factorization.

10204021535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3464918.

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 10204021535 its reverse (53512040201), we get a palindrome (63716061736).

The spelling of 10204021535 in words is "ten billion, two hundred four million, twenty-one thousand, five hundred thirty-five".