13203564213620 has 96 divisors (see below), whose sum is σ = 32074783211520. Its totient is φ = 4512191191040.

The previous prime is 13203564213607. The next prime is 13203564213629. The reversal of 13203564213620 is 2631246530231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13203564213629) by changing a digit.

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, 75380 + ... + 5139339.

It is an arithmetic number, because the mean of its divisors is an integer number (334112325120).

Almost surely, 2^{13203564213620} is an apocalyptic number.

13203564213620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13203564213620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16037391605760).

13203564213620 is an abundant number, since it is smaller than the sum of its proper divisors (18871218997900).

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

13203564213620 is a wasteful number, since it uses less digits than its factorization.

13203564213620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5215433 (or 5215431 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 13203564213620 in words is "thirteen trillion, two hundred three billion, five hundred sixty-four million, two hundred thirteen thousand, six hundred twenty".