102121041 has 16 divisors (see below), whose sum is σ = 148739328. Its totient is φ = 61808400.

The previous prime is 102121031. The next prime is 102121043. The reversal of 102121041 is 140121201.

It is a happy number.

It is not a de Polignac number, because 102121041 - 2¹⁰ = 102120017 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (102121043) 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, 30450 + ... + 33636.

It is an arithmetic number, because the mean of its divisors is an integer number (9296208).

Almost surely, 2^102121041 is an apocalyptic number.

102121041 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102121041 is a deficient number, since it is larger than the sum of its proper divisors (46618287).

102121041 is a wasteful number, since it uses less digits than its factorization.

102121041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4172.

The product of its (nonzero) digits is 16, while the sum is 12.

The square root of 102121041 is about 10105.4955840869. The cubic root of 102121041 is about 467.4176178628.

Adding to 102121041 its reverse (140121201), we get a palindrome (242242242).

The spelling of 102121041 in words is "one hundred two million, one hundred twenty-one thousand, forty-one".