10204321111 has 16 divisors (see below), whose sum is σ = 10954234368. Its totient is φ = 9471945600.

The previous prime is 10204321091. The next prime is 10204321123. The reversal of 10204321111 is 11112340201.

It is a cyclic number.

It is not a de Polignac number, because 10204321111 - 2²³ = 10195932503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10204321411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 348946 + ... + 377056.

It is an arithmetic number, because the mean of its divisors is an integer number (684639648).

Almost surely, 2^10204321111 is an apocalyptic number.

10204321111 is a deficient number, since it is larger than the sum of its proper divisors (749913257).

10204321111 is a wasteful number, since it uses less digits than its factorization.

10204321111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28422.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 10204321111 its reverse (11112340201), we get a palindrome (21316661312).

The spelling of 10204321111 in words is "ten billion, two hundred four million, three hundred twenty-one thousand, one hundred eleven".