10511213105 has 16 divisors (see below), whose sum is σ = 12904354944. Its totient is φ = 8217135360.

The previous prime is 10511213099. The next prime is 10511213107. The reversal of 10511213105 is 50131211501.

It is a happy number.

It is not a de Polignac number, because 10511213105 - 2⁸ = 10511212849 is a prime.

It is a super-2 number, since 2×10511213105² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10511213107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90899 + ... + 171128.

It is an arithmetic number, because the mean of its divisors is an integer number (806522184).

Almost surely, 2^10511213105 is an apocalyptic number.

It is an amenable number.

10511213105 is a deficient number, since it is larger than the sum of its proper divisors (2393141839).

10511213105 is a wasteful number, since it uses less digits than its factorization.

10511213105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262216.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 10511213105 its reverse (50131211501), we get a palindrome (60642424606).

The spelling of 10511213105 in words is "ten billion, five hundred eleven million, two hundred thirteen thousand, one hundred five".