13203031100 has 72 divisors (see below), whose sum is σ = 32865708960. Its totient is φ = 4509861120.

The previous prime is 13203031097. The next prime is 13203031111. The reversal of 13203031100 is 113030231.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153242 + ... + 223358.

It is an arithmetic number, because the mean of its divisors is an integer number (456468180).

Almost surely, 2^13203031100 is an apocalyptic number.

13203031100 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 13203031100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16432854480).

13203031100 is an abundant number, since it is smaller than the sum of its proper divisors (19662677860).

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

13203031100 is a wasteful number, since it uses less digits than its factorization.

13203031100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70407 (or 70400 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13203031100 its reverse (113030231), we get a palindrome (13316061331).

The spelling of 13203031100 in words is "thirteen billion, two hundred three million, thirty-one thousand, one hundred".