123005220535 has 8 divisors (see below), whose sum is σ = 147609060480. Its totient is φ = 98402312544.

The previous prime is 123005220511. The next prime is 123005220631. The reversal of 123005220535 is 535022500321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123005220535 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 7 ways as a sum of consecutive naturals, for example, 100881 + ... + 506149.

It is an arithmetic number, because the mean of its divisors is an integer number (18451132560).

Almost surely, 2^123005220535 is an apocalyptic number.

123005220535 is a deficient number, since it is larger than the sum of its proper divisors (24603839945).

123005220535 is an equidigital number, since it uses as much as digits as its factorization.

123005220535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465977.

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 123005220535 its reverse (535022500321), we get a palindrome (658027720856).

The spelling of 123005220535 in words is "one hundred twenty-three billion, five million, two hundred twenty thousand, five hundred thirty-five".