13240023020 has 48 divisors (see below), whose sum is σ = 32634880320. Its totient is φ = 4416747264.

The previous prime is 13240023007. The next prime is 13240023103. The reversal of 13240023020 is 2032004231.

It is a self number, because there is not a number n which added to its sum of digits gives 13240023020.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1272815 + ... + 1283174.

It is an arithmetic number, because the mean of its divisors is an integer number (679893340).

Almost surely, 2^13240023020 is an apocalyptic number.

13240023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13240023020 is an abundant number, since it is smaller than the sum of its proper divisors (19394857300).

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

13240023020 is a wasteful number, since it uses less digits than its factorization.

13240023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2556042 (or 2556040 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 13240023020 its reverse (2032004231), we get a palindrome (15272027251).

The spelling of 13240023020 in words is "thirteen billion, two hundred forty million, twenty-three thousand, twenty".