10931220076481 has 2 divisors, whose sum is σ = 10931220076482. Its totient is φ = 10931220076480.

The previous prime is 10931220076459. The next prime is 10931220076499. The reversal of 10931220076481 is 18467002213901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10382411730625 + 548808345856 = 3222175^2 + 740816^2 .

It is a cyclic number.

It is not a de Polignac number, because 10931220076481 - 2¹⁸ = 10931219814337 is a prime.

It is a super-2 number, since 2×10931220076481² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10931220076421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5465610038240 + 5465610038241.

It is an arithmetic number, because the mean of its divisors is an integer number (5465610038241).

Almost surely, 2^{10931220076481} is an apocalyptic number.

It is an amenable number.

10931220076481 is a deficient number, since it is larger than the sum of its proper divisors (1).

10931220076481 is an equidigital number, since it uses as much as digits as its factorization.

10931220076481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 10931220076481 in words is "ten trillion, nine hundred thirty-one billion, two hundred twenty million, seventy-six thousand, four hundred eighty-one".