120521140104403 has 4 divisors (see below), whose sum is σ = 120522114474840. Its totient is φ = 120520165733968.

The previous prime is 120521140104367. The next prime is 120521140104451. The reversal of 120521140104403 is 304401041125021.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120521140104403 - 2²⁹ = 120520603233491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120521140104493) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486999658 + ... + 487247071.

It is an arithmetic number, because the mean of its divisors is an integer number (30130528618710).

Almost surely, 2^{120521140104403} is an apocalyptic number.

120521140104403 is a deficient number, since it is larger than the sum of its proper divisors (974370437).

120521140104403 is an equidigital number, since it uses as much as digits as its factorization.

120521140104403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 974370436.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 120521140104403 its reverse (304401041125021), we get a palindrome (424922181229424).

The spelling of 120521140104403 in words is "one hundred twenty trillion, five hundred twenty-one billion, one hundred forty million, one hundred four thousand, four hundred three".