13423515031340 has 24 divisors (see below), whose sum is σ = 28189535745840. Its totient is φ = 5369376644928.

The previous prime is 13423515031273. The next prime is 13423515031351. The reversal of 13423515031340 is 4313051532431.

It is a super-2 number, since 2×13423515031340² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13423515031340.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2120594 + ... + 5598566.

It is an arithmetic number, because the mean of its divisors is an integer number (1174563989410).

Almost surely, 2^{13423515031340} is an apocalyptic number.

13423515031340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13423515031340 is an abundant number, since it is smaller than the sum of its proper divisors (14766020714500).

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

13423515031340 is a wasteful number, since it uses less digits than its factorization.

13423515031340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3670961 (or 3670959 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 13423515031340 its reverse (4313051532431), we get a palindrome (17736566563771).

The spelling of 13423515031340 in words is "thirteen trillion, four hundred twenty-three billion, five hundred fifteen million, thirty-one thousand, three hundred forty".