1010187035521 has 2 divisors, whose sum is σ = 1010187035522. Its totient is φ = 1010187035520.

The previous prime is 1010187035519. The next prime is 1010187035563. The reversal of 1010187035521 is 1255307810101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 945143674225 + 65043361296 = 972185^2 + 255036^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010187035521 - 2¹ = 1010187035519 is a prime.

It is a super-2 number, since 2×1010187035521² (a number of 25 digits) contains 22 as substring.

Together with 1010187035519, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1010187033521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505093517760 + 505093517761.

It is an arithmetic number, because the mean of its divisors is an integer number (505093517761).

Almost surely, 2^{1010187035521} is an apocalyptic number.

It is an amenable number.

1010187035521 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010187035521 is an equidigital number, since it uses as much as digits as its factorization.

1010187035521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 34.

The spelling of 1010187035521 in words is "one trillion, ten billion, one hundred eighty-seven million, thirty-five thousand, five hundred twenty-one".