104312021135 has 32 divisors (see below), whose sum is σ = 146137485312. Its totient is φ = 69988521600.

The previous prime is 104312021111. The next prime is 104312021159. The reversal of 104312021135 is 531120213401.

It is an interprime number because it is at equal distance from previous prime (104312021111) and next prime (104312021159).

It is not a de Polignac number, because 104312021135 - 2²⁰ = 104310972559 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 104312021135.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11018414 + ... + 11027876.

It is an arithmetic number, because the mean of its divisors is an integer number (4566796416).

Almost surely, 2^104312021135 is an apocalyptic number.

104312021135 is a deficient number, since it is larger than the sum of its proper divisors (41825464177).

104312021135 is an equidigital number, since it uses as much as digits as its factorization.

104312021135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16223.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 104312021135 its reverse (531120213401), we get a palindrome (635432234536).

The spelling of 104312021135 in words is "one hundred four billion, three hundred twelve million, twenty-one thousand, one hundred thirty-five".