13140031140 has 96 divisors (see below), whose sum is σ = 40910674560. Its totient is φ = 3501387648.

The previous prime is 13140031139. The next prime is 13140031147. The reversal of 13140031140 is 4113004131.

13140031140 is a `hidden beast` number, since 1 + 314 + 0 + 0 + 311 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (13140031147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 776247 + ... + 792993.

It is an arithmetic number, because the mean of its divisors is an integer number (426152860).

Almost surely, 2^13140031140 is an apocalyptic number.

13140031140 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 13140031140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20455337280).

13140031140 is an abundant number, since it is smaller than the sum of its proper divisors (27770643420).

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

13140031140 is a wasteful number, since it uses less digits than its factorization.

13140031140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18218 (or 18210 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 13140031140 its reverse (4113004131), we get a palindrome (17253035271).

The spelling of 13140031140 in words is "thirteen billion, one hundred forty million, thirty-one thousand, one hundred forty".