101111109999481 has 2 divisors, whose sum is σ = 101111109999482. Its totient is φ = 101111109999480.

The previous prime is 101111109999461. The next prime is 101111109999631. The reversal of 101111109999481 is 184999901111101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72553938979600 + 28557171019881 = 8517860^2 + 5343891^2 .

It is a cyclic number.

It is not a de Polignac number, because 101111109999481 - 2¹⁷ = 101111109868409 is a prime.

It is a super-2 number, since 2×101111109999481² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101111109999401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50555554999740 + 50555554999741.

It is an arithmetic number, because the mean of its divisors is an integer number (50555554999741).

Almost surely, 2^{101111109999481} is an apocalyptic number.

It is an amenable number.

101111109999481 is a deficient number, since it is larger than the sum of its proper divisors (1).

101111109999481 is an equidigital number, since it uses as much as digits as its factorization.

101111109999481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 55.

The spelling of 101111109999481 in words is "one hundred one trillion, one hundred eleven billion, one hundred nine million, nine hundred ninety-nine thousand, four hundred eighty-one".