10501115501 has 2 divisors, whose sum is σ = 10501115502. Its totient is φ = 10501115500.

The previous prime is 10501115467. The next prime is 10501115503. The reversal of 10501115501 is 10551110501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9433459876 + 1067655625 = 97126^2 + 32675^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10501115501 is a prime.

It is a super-2 number, since 2×10501115501² (a number of 21 digits) contains 22 as substring.

Together with 10501115503, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10501115503) 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, 5250557750 + 5250557751.

It is an arithmetic number, because the mean of its divisors is an integer number (5250557751).

Almost surely, 2^10501115501 is an apocalyptic number.

It is an amenable number.

10501115501 is a deficient number, since it is larger than the sum of its proper divisors (1).

10501115501 is an equidigital number, since it uses as much as digits as its factorization.

10501115501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125, while the sum is 20.

Subtracting 10501115501 from its reverse (10551110501), we obtain a triangular number (49995000 = T₉₉₉₉).

The spelling of 10501115501 in words is "ten billion, five hundred one million, one hundred fifteen thousand, five hundred one".