13430021140 has 24 divisors (see below), whose sum is σ = 28366075080. Its totient is φ = 5340955008.

The previous prime is 13430021119. The next prime is 13430021147. The reversal of 13430021140 is 4112003431.

It can be written as a sum of positive squares in 4 ways, for example, as 5476592016 + 7953429124 = 74004^2 + 89182^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13430021147) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1937295 + ... + 1944214.

It is an arithmetic number, because the mean of its divisors is an integer number (1181919795).

Almost surely, 2^13430021140 is an apocalyptic number.

13430021140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13430021140 is an abundant number, since it is smaller than the sum of its proper divisors (14936053940).

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

13430021140 is a wasteful number, since it uses less digits than its factorization.

13430021140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881691 (or 3881689 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13430021140 its reverse (4112003431), we get a palindrome (17542024571).

The spelling of 13430021140 in words is "thirteen billion, four hundred thirty million, twenty-one thousand, one hundred forty".