1030101020981 has 2 divisors, whose sum is σ = 1030101020982. Its totient is φ = 1030101020980.

The previous prime is 1030101020959. The next prime is 1030101021017. The reversal of 1030101020981 is 1890201010301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 739832218225 + 290268802756 = 860135^2 + 538766^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030101020981 is a prime.

It is a super-2 number, since 2×1030101020981² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1030101020981.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030101820981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515050510490 + 515050510491.

It is an arithmetic number, because the mean of its divisors is an integer number (515050510491).

Almost surely, 2^{1030101020981} is an apocalyptic number.

It is an amenable number.

1030101020981 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030101020981 is an equidigital number, since it uses as much as digits as its factorization.

1030101020981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 1030101020981 in words is "one trillion, thirty billion, one hundred one million, twenty thousand, nine hundred eighty-one".