10121124111 has 32 divisors (see below), whose sum is σ = 15495356928. Its totient is φ = 5756313600.

The previous prime is 10121124109. The next prime is 10121124119. The reversal of 10121124111 is 11142112101.

It is a happy number.

It is not a de Polignac number, because 10121124111 - 2¹ = 10121124109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121124119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4857876 + ... + 4859958.

It is an arithmetic number, because the mean of its divisors is an integer number (484229904).

Almost surely, 2^10121124111 is an apocalyptic number.

10121124111 is a deficient number, since it is larger than the sum of its proper divisors (5374232817).

10121124111 is a wasteful number, since it uses less digits than its factorization.

10121124111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3071.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10121124111 its reverse (11142112101), we get a palindrome (21263236212).

The spelling of 10121124111 in words is "ten billion, one hundred twenty-one million, one hundred twenty-four thousand, one hundred eleven".