23071045221481 has 2 divisors, whose sum is σ = 23071045221482. Its totient is φ = 23071045221480.

The previous prime is 23071045221473. The next prime is 23071045221493. The reversal of 23071045221481 is 18412254017032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22656257699881 + 414787521600 = 4759859^2 + 644040^2 .

It is a cyclic number.

It is not a de Polignac number, because 23071045221481 - 2³ = 23071045221473 is a prime.

It is a super-2 number, since 2×23071045221481² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23071045221461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11535522610740 + 11535522610741.

It is an arithmetic number, because the mean of its divisors is an integer number (11535522610741).

Almost surely, 2^{23071045221481} is an apocalyptic number.

It is an amenable number.

23071045221481 is a deficient number, since it is larger than the sum of its proper divisors (1).

23071045221481 is an equidigital number, since it uses as much as digits as its factorization.

23071045221481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 107520, while the sum is 40.

The spelling of 23071045221481 in words is "twenty-three trillion, seventy-one billion, forty-five million, two hundred twenty-one thousand, four hundred eighty-one".