101121005 has 16 divisors (see below), whose sum is σ = 122774400. Its totient is φ = 79950912.

The previous prime is 101120989. The next prime is 101121011. The reversal of 101121005 is 500121101.

It is a cyclic number.

It is not a de Polignac number, because 101121005 - 2⁴ = 101120989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289571 + ... + 289919.

It is an arithmetic number, because the mean of its divisors is an integer number (7673400).

Almost surely, 2^101121005 is an apocalyptic number.

It is an amenable number.

101121005 is a deficient number, since it is larger than the sum of its proper divisors (21653395).

101121005 is a wasteful number, since it uses less digits than its factorization.

101121005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 868.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 101121005 is about 10055.8940427990. The cubic root of 101121005 is about 465.8868572290.

Adding to 101121005 its reverse (500121101), we get a palindrome (601242106).

The spelling of 101121005 in words is "one hundred one million, one hundred twenty-one thousand, five".