13113120340 has 24 divisors (see below), whose sum is σ = 29157409512. Its totient is φ = 4936704000.

The previous prime is 13113120287. The next prime is 13113120347. The reversal of 13113120340 is 4302131131.

It can be written as a sum of positive squares in 4 ways, for example, as 6844914756 + 6268205584 = 82734^2 + 79172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113120347) 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, 19283661 + ... + 19284340.

It is an arithmetic number, because the mean of its divisors is an integer number (1214892063).

Almost surely, 2^13113120340 is an apocalyptic number.

13113120340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13113120340 is an abundant number, since it is smaller than the sum of its proper divisors (16044289172).

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

13113120340 is a wasteful number, since it uses less digits than its factorization.

13113120340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38568027 (or 38568025 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13113120340 its reverse (4302131131), we get a palindrome (17415251471).

The spelling of 13113120340 in words is "thirteen billion, one hundred thirteen million, one hundred twenty thousand, three hundred forty".