21312101033011 has 2 divisors, whose sum is σ = 21312101033012. Its totient is φ = 21312101033010.

The previous prime is 21312101032973. The next prime is 21312101033033. The reversal of 21312101033011 is 11033010121312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21312101033011 - 2¹¹ = 21312101030963 is a prime.

It is a super-2 number, since 2×21312101033011² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21312101033011.

It is not a weakly prime, because it can be changed into another prime (21312101033081) 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 as a sum of consecutive naturals, namely, 10656050516505 + 10656050516506.

It is an arithmetic number, because the mean of its divisors is an integer number (10656050516506).

Almost surely, 2^{21312101033011} is an apocalyptic number.

21312101033011 is a deficient number, since it is larger than the sum of its proper divisors (1).

21312101033011 is an equidigital number, since it uses as much as digits as its factorization.

21312101033011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21312101033011 its reverse (11033010121312), we get a palindrome (32345111154323).

The spelling of 21312101033011 in words is "twenty-one trillion, three hundred twelve billion, one hundred one million, thirty-three thousand, eleven".