10721011697087 has 2 divisors, whose sum is σ = 10721011697088. Its totient is φ = 10721011697086.

The previous prime is 10721011697083. The next prime is 10721011697129. The reversal of 10721011697087 is 78079611012701.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10721011697087 - 2² = 10721011697083 is a prime.

It is a super-2 number, since 2×10721011697087² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10721011697083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5360505848543 + 5360505848544.

It is an arithmetic number, because the mean of its divisors is an integer number (5360505848544).

Almost surely, 2^{10721011697087} is an apocalyptic number.

10721011697087 is a deficient number, since it is larger than the sum of its proper divisors (1).

10721011697087 is an equidigital number, since it uses as much as digits as its factorization.

10721011697087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 296352, while the sum is 50.

The spelling of 10721011697087 in words is "ten trillion, seven hundred twenty-one billion, eleven million, six hundred ninety-seven thousand, eighty-seven".