15140213041021 has 4 divisors (see below), whose sum is σ = 15140378905344. Its totient is φ = 15140047176700.

The previous prime is 15140213041003. The next prime is 15140213041043. The reversal of 15140213041021 is 12014031204151.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15140213041021 - 2²⁵ = 15140179486589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15140213041001) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 82795165 + ... + 82977826.

It is an arithmetic number, because the mean of its divisors is an integer number (3785094726336).

Almost surely, 2^{15140213041021} is an apocalyptic number.

It is an amenable number.

15140213041021 is a deficient number, since it is larger than the sum of its proper divisors (165864323).

15140213041021 is an equidigital number, since it uses as much as digits as its factorization.

15140213041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165864322.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 15140213041021 its reverse (12014031204151), we get a palindrome (27154244245172).

The spelling of 15140213041021 in words is "fifteen trillion, one hundred forty billion, two hundred thirteen million, forty-one thousand, twenty-one".