13210431240 has 128 divisors (see below), whose sum is σ = 40647640320. Its totient is φ = 3432652800.

The previous prime is 13210431209. The next prime is 13210431257. The reversal of 13210431240 is 4213401231.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7433232 + ... + 7435008.

It is an arithmetic number, because the mean of its divisors is an integer number (317559690).

Almost surely, 2^13210431240 is an apocalyptic number.

13210431240 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 13210431240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20323820160).

13210431240 is an abundant number, since it is smaller than the sum of its proper divisors (27437209080).

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

13210431240 is a wasteful number, since it uses less digits than its factorization.

13210431240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3343 (or 3339 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13210431240 its reverse (4213401231), we get a palindrome (17423832471).

The spelling of 13210431240 in words is "thirteen billion, two hundred ten million, four hundred thirty-one thousand, two hundred forty".