21040023241519 has 8 divisors (see below), whose sum is σ = 21805773354720. Its totient is φ = 20276955266400.

The previous prime is 21040023241469. The next prime is 21040023241537. The reversal of 21040023241519 is 91514232004012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21040023241519 - 2³³ = 21031433306927 is a prime.

It is a super-2 number, since 2×21040023241519² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21040023241019) 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, 670518547 + ... + 670549924.

It is an arithmetic number, because the mean of its divisors is an integer number (2725721669340).

Almost surely, 2^{21040023241519} is an apocalyptic number.

21040023241519 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

21040023241519 is a deficient number, since it is larger than the sum of its proper divisors (765750113201).

21040023241519 is a wasteful number, since it uses less digits than its factorization.

21040023241519 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341069041.

The product of its (nonzero) digits is 17280, while the sum is 34.

The spelling of 21040023241519 in words is "twenty-one trillion, forty billion, twenty-three million, two hundred forty-one thousand, five hundred nineteen".