13231012340 has 192 divisors, whose sum is σ = 35308224000. Its totient is φ = 4137864192.

The previous prime is 13231012337. The next prime is 13231012343. The reversal of 13231012340 is 4321013231.

It is an interprime number because it is at equal distance from previous prime (13231012337) and next prime (13231012343).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13231012343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7936187 + ... + 7937853.

It is an arithmetic number, because the mean of its divisors is an integer number (183897000).

Almost surely, 2^13231012340 is an apocalyptic number.

13231012340 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 13231012340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17654112000).

13231012340 is an abundant number, since it is smaller than the sum of its proper divisors (22077211660).

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

13231012340 is a wasteful number, since it uses less digits than its factorization.

13231012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1799 (or 1783 counting only the distinct ones).

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

Adding to 13231012340 its reverse (4321013231), we get a palindrome (17552025571).

The spelling of 13231012340 in words is "thirteen billion, two hundred thirty-one million, twelve thousand, three hundred forty".