13203431310 has 96 divisors (see below), whose sum is σ = 34392789216. Its totient is φ = 3232768000.

The previous prime is 13203431279. The next prime is 13203431369. The reversal of 13203431310 is 1313430231.

It is a super-2 number, since 2×13203431310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 849610 + ... + 865010.

It is an arithmetic number, because the mean of its divisors is an integer number (358258221).

Almost surely, 2^13203431310 is an apocalyptic number.

13203431310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13203431310, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17196394608).

13203431310 is an abundant number, since it is smaller than the sum of its proper divisors (21189357906).

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

13203431310 is a wasteful number, since it uses less digits than its factorization.

13203431310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15510 (or 15469 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13203431310 its reverse (1313430231), we get a palindrome (14516861541).

The spelling of 13203431310 in words is "thirteen billion, two hundred three million, four hundred thirty-one thousand, three hundred ten".