623201135502 has 16 divisors (see below), whose sum is σ = 1359711568512. Its totient is φ = 188848828920.

The previous prime is 623201135471. The next prime is 623201135527. The reversal of 623201135502 is 205531102326.

623201135502 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 623201135502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4721220658 + ... + 4721220789.

It is an arithmetic number, because the mean of its divisors is an integer number (84981973032).

Almost surely, 2^623201135502 is an apocalyptic number.

623201135502 is an abundant number, since it is smaller than the sum of its proper divisors (736510433010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623201135502 is a wasteful number, since it uses less digits than its factorization.

623201135502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9442441463.

The product of its (nonzero) digits is 10800, while the sum is 30.

Adding to 623201135502 its reverse (205531102326), we get a palindrome (828732237828).

The spelling of 623201135502 in words is "six hundred twenty-three billion, two hundred one million, one hundred thirty-five thousand, five hundred two".