13103303430 has 128 divisors (see below), whose sum is σ = 36973117440. Its totient is φ = 2909923200.

The previous prime is 13103303429. The next prime is 13103303461. The reversal of 13103303430 is 3430330131.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 13103303397 and 13103303406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1367155 + ... + 1376705.

It is an arithmetic number, because the mean of its divisors is an integer number (288852480).

Almost surely, 2^13103303430 is an apocalyptic number.

13103303430 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 13103303430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18486558720).

13103303430 is an abundant number, since it is smaller than the sum of its proper divisors (23869814010).

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

13103303430 is a wasteful number, since it uses less digits than its factorization.

13103303430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9754.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 13103303430 its reverse (3430330131), we get a palindrome (16533633561).

The spelling of 13103303430 in words is "thirteen billion, one hundred three million, three hundred three thousand, four hundred thirty".