13290240613 has 12 divisors (see below), whose sum is σ = 14394615300. Its totient is φ = 12265009536.

The previous prime is 13290240583. The next prime is 13290240629. The reversal of 13290240613 is 31604209231.

It can be written as a sum of positive squares in 6 ways, for example, as 706336929 + 12583903684 = 26577^2 + 112178^2 .

It is not a de Polignac number, because 13290240613 - 2¹³ = 13290232421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13290240653) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1087863 + ... + 1100011.

It is an arithmetic number, because the mean of its divisors is an integer number (1199551275).

Almost surely, 2^13290240613 is an apocalyptic number.

13290240613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13290240613 is a deficient number, since it is larger than the sum of its proper divisors (1104374687).

13290240613 is a wasteful number, since it uses less digits than its factorization.

13290240613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18648 (or 18635 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 31.

Adding to 13290240613 its reverse (31604209231), we get a palindrome (44894449844).

The spelling of 13290240613 in words is "thirteen billion, two hundred ninety million, two hundred forty thousand, six hundred thirteen".