13013444140 has 12 divisors (see below), whose sum is σ = 27328232736. Its totient is φ = 5205377648.

The previous prime is 13013444131. The next prime is 13013444149. The reversal of 13013444140 is 4144431031.

It is an interprime number because it is at equal distance from previous prime (13013444131) and next prime (13013444149).

It is not an unprimeable number, because it can be changed into a prime (13013444149) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 325336084 + ... + 325336123.

It is an arithmetic number, because the mean of its divisors is an integer number (2277352728).

Almost surely, 2^13013444140 is an apocalyptic number.

13013444140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13013444140 is an abundant number, since it is smaller than the sum of its proper divisors (14314788596).

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

13013444140 is a wasteful number, since it uses less digits than its factorization.

13013444140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650672216 (or 650672214 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 13013444140 its reverse (4144431031), we get a palindrome (17157875171).

The spelling of 13013444140 in words is "thirteen billion, thirteen million, four hundred forty-four thousand, one hundred forty".