13203020240 has 40 divisors (see below), whose sum is σ = 31755545640. Its totient is φ = 5099096576.

The previous prime is 13203020227. The next prime is 13203020261. The reversal of 13203020240 is 4202030231.

It can be written as a sum of positive squares in 4 ways, for example, as 2682825616 + 10520194624 = 51796^2 + 102568^2 .

It is a tau number, because it is divible by the number of its divisors (40).

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, 2843159 + ... + 2847798.

It is an arithmetic number, because the mean of its divisors is an integer number (793888641).

Almost surely, 2^13203020240 is an apocalyptic number.

13203020240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13203020240 is an abundant number, since it is smaller than the sum of its proper divisors (18552525400).

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

13203020240 is a wasteful number, since it uses less digits than its factorization.

13203020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5690999 (or 5690993 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 13203020240 its reverse (4202030231), we get a palindrome (17405050471).

Subtracting from 13203020240 its reverse (4202030231), we obtain a palindrome (9000990009).

The spelling of 13203020240 in words is "thirteen billion, two hundred three million, twenty thousand, two hundred forty".