213521112403302 has 32 divisors (see below), whose sum is σ = 465884752201344. Its totient is φ = 64700519206400.

The previous prime is 213521112403297. The next prime is 213521112403349. The reversal of 213521112403302 is 203304211125312.

It is a self number, because there is not a number n which added to its sum of digits gives 213521112403302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 69693768 + ... + 72692939.

It is an arithmetic number, because the mean of its divisors is an integer number (14558898506292).

Almost surely, 2^{213521112403302} is an apocalyptic number.

213521112403302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

213521112403302 is an abundant number, since it is smaller than the sum of its proper divisors (252363639798042).

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

213521112403302 is a wasteful number, since it uses less digits than its factorization.

213521112403302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142409444.

The product of its (nonzero) digits is 8640, while the sum is 30.

Adding to 213521112403302 its reverse (203304211125312), we get a palindrome (416825323528614).

The spelling of 213521112403302 in words is "two hundred thirteen trillion, five hundred twenty-one billion, one hundred twelve million, four hundred three thousand, three hundred two".