21110333021131 has 2 divisors, whose sum is σ = 21110333021132. Its totient is φ = 21110333021130.

The previous prime is 21110333021093. The next prime is 21110333021161. The reversal of 21110333021131 is 13112033301112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21110333021131 - 2³⁷ = 20972894067659 is a prime.

It is a super-2 number, since 2×21110333021131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21110333021161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10555166510565 + 10555166510566.

It is an arithmetic number, because the mean of its divisors is an integer number (10555166510566).

Almost surely, 2^{21110333021131} is an apocalyptic number.

21110333021131 is a deficient number, since it is larger than the sum of its proper divisors (1).

21110333021131 is an equidigital number, since it uses as much as digits as its factorization.

21110333021131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 21110333021131 its reverse (13112033301112), we get a palindrome (34222366322243).

The spelling of 21110333021131 in words is "twenty-one trillion, one hundred ten billion, three hundred thirty-three million, twenty-one thousand, one hundred thirty-one".