13211203340 has 24 divisors (see below), whose sum is σ = 27746152560. Its totient is φ = 5283981248.

The previous prime is 13211203339. The next prime is 13211203349. The reversal of 13211203340 is 4330211231.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (13211203349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244859 + ... + 293901.

It is an arithmetic number, because the mean of its divisors is an integer number (1156089690).

Almost surely, 2^13211203340 is an apocalyptic number.

13211203340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13211203340 is an abundant number, since it is smaller than the sum of its proper divisors (14534949220).

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

13211203340 is a wasteful number, since it uses less digits than its factorization.

13211203340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62521 (or 62519 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13211203340 its reverse (4330211231), we get a palindrome (17541414571).

The spelling of 13211203340 in words is "thirteen billion, two hundred eleven million, two hundred three thousand, three hundred forty".