21146532203041 has 16 divisors (see below), whose sum is σ = 24367865610240. Its totient is φ = 17975417276880.

The previous prime is 21146532203039. The next prime is 21146532203077. The reversal of 21146532203041 is 14030223564112.

It is not a de Polignac number, because 21146532203041 - 2¹ = 21146532203039 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21146532202988 and 21146532203006.

It is not an unprimeable number, because it can be changed into a prime (21146532203021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2789611 + ... + 7076368.

It is an arithmetic number, because the mean of its divisors is an integer number (1522991600640).

Almost surely, 2^{21146532203041} is an apocalyptic number.

It is an amenable number.

21146532203041 is a deficient number, since it is larger than the sum of its proper divisors (3221333407199).

21146532203041 is a wasteful number, since it uses less digits than its factorization.

21146532203041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9868524.

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 21146532203041 its reverse (14030223564112), we get a palindrome (35176755767153).

The spelling of 21146532203041 in words is "twenty-one trillion, one hundred forty-six billion, five hundred thirty-two million, two hundred three thousand, forty-one".