21101310110001 has 16 divisors (see below), whose sum is σ = 30820170794688. Its totient is φ = 12735607756800.

The previous prime is 21101310109951. The next prime is 21101310110009. The reversal of 21101310110001 is 10001101310112.

It is not a de Polignac number, because 21101310110001 - 2⁶ = 21101310109937 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21101310110009) by changing a digit.

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, 1326617856 + ... + 1326633761.

It is an arithmetic number, because the mean of its divisors is an integer number (1926260674668).

Almost surely, 2^{21101310110001} is an apocalyptic number.

It is an amenable number.

21101310110001 is a deficient number, since it is larger than the sum of its proper divisors (9718860684687).

21101310110001 is a wasteful number, since it uses less digits than its factorization.

21101310110001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2653251872.

The product of its (nonzero) digits is 6, while the sum is 12.

Adding to 21101310110001 its reverse (10001101310112), we get a palindrome (31102411420113).

The spelling of 21101310110001 in words is "twenty-one trillion, one hundred one billion, three hundred ten million, one hundred ten thousand, one".