21101033013311 has 2 divisors, whose sum is σ = 21101033013312. Its totient is φ = 21101033013310.

The previous prime is 21101033013299. The next prime is 21101033013397. The reversal of 21101033013311 is 11331033010112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21101033013311 - 2¹⁰ = 21101033012287 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21101033010311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550516506655 + 10550516506656.

It is an arithmetic number, because the mean of its divisors is an integer number (10550516506656).

Almost surely, 2^{21101033013311} is an apocalyptic number.

21101033013311 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101033013311 is an equidigital number, since it uses as much as digits as its factorization.

21101033013311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 21101033013311 its reverse (11331033010112), we get a palindrome (32432066023423).

The spelling of 21101033013311 in words is "twenty-one trillion, one hundred one billion, thirty-three million, thirteen thousand, three hundred eleven".