21241020232113 has 24 divisors (see below), whose sum is σ = 31505151630624. Its totient is φ = 12718245027840.

The previous prime is 21241020232013. The next prime is 21241020232129. The reversal of 21241020232113 is 31123202014212.

It is not a de Polignac number, because 21241020232113 - 2⁸ = 21241020231857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21241020232153) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352471120 + ... + 352531377.

It is an arithmetic number, because the mean of its divisors is an integer number (1312714651276).

Almost surely, 2^{21241020232113} is an apocalyptic number.

It is an amenable number.

21241020232113 is a deficient number, since it is larger than the sum of its proper divisors (10264131398511).

21241020232113 is a wasteful number, since it uses less digits than its factorization.

21241020232113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705002605 (or 705002594 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21241020232113 its reverse (31123202014212), we get a palindrome (52364222246325).

The spelling of 21241020232113 in words is "twenty-one trillion, two hundred forty-one billion, twenty million, two hundred thirty-two thousand, one hundred thirteen".