1010110100981 has 2 divisors, whose sum is σ = 1010110100982. Its totient is φ = 1010110100980.

The previous prime is 1010110100959. The next prime is 1010110101041. The reversal of 1010110100981 is 1890010110101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 660060378481 + 350049722500 = 812441^2 + 591650^2 .

It is an emirp because it is prime and its reverse (1890010110101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1010110100981 - 2²⁶ = 1010042992117 is a prime.

It is a super-2 number, since 2×1010110100981² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010110160981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505055050490 + 505055050491.

It is an arithmetic number, because the mean of its divisors is an integer number (505055050491).

Almost surely, 2^{1010110100981} is an apocalyptic number.

It is an amenable number.

1010110100981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010110100981 is an equidigital number, since it uses as much as digits as its factorization.

1010110100981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 23.

The spelling of 1010110100981 in words is "one trillion, ten billion, one hundred ten million, one hundred thousand, nine hundred eighty-one".