13140502334440 has 32 divisors (see below), whose sum is σ = 31840447965480. Its totient is φ = 4851877784832.

The previous prime is 13140502334423. The next prime is 13140502334447. The reversal of 13140502334440 is 4443320504131.

It can be written as a sum of positive squares in 4 ways, for example, as 11909028294916 + 1231474039524 = 3450946^2 + 1109718^2 .

It is a super-2 number, since 2×13140502334440² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13140502334396 and 13140502334405.

It is not an unprimeable number, because it can be changed into a prime (13140502334447) 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, 12635097879 + ... + 12635098918.

Almost surely, 2^{13140502334440} is an apocalyptic number.

13140502334440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13140502334440 is an abundant number, since it is smaller than the sum of its proper divisors (18699945631040).

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

13140502334440 is a wasteful number, since it uses less digits than its factorization.

13140502334440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25270196821 (or 25270196817 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 34.

Adding to 13140502334440 its reverse (4443320504131), we get a palindrome (17583822838571).

The spelling of 13140502334440 in words is "thirteen trillion, one hundred forty billion, five hundred two million, three hundred thirty-four thousand, four hundred forty".