21223110320131 has 2 divisors, whose sum is σ = 21223110320132. Its totient is φ = 21223110320130.

The previous prime is 21223110320081. The next prime is 21223110320143. The reversal of 21223110320131 is 13102301132212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21223110320131 - 2⁷ = 21223110320003 is a prime.

It is a super-2 number, since 2×21223110320131² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (21223110420131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10611555160065 + 10611555160066.

It is an arithmetic number, because the mean of its divisors is an integer number (10611555160066).

Almost surely, 2^{21223110320131} is an apocalyptic number.

21223110320131 is a deficient number, since it is larger than the sum of its proper divisors (1).

21223110320131 is an equidigital number, since it uses as much as digits as its factorization.

21223110320131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21223110320131 its reverse (13102301132212), we get a palindrome (34325411452343).

The spelling of 21223110320131 in words is "twenty-one trillion, two hundred twenty-three billion, one hundred ten million, three hundred twenty thousand, one hundred thirty-one".