102043205121 has 16 divisors (see below), whose sum is σ = 159843902400. Its totient is φ = 57087107520.

The previous prime is 102043205071. The next prime is 102043205141. The reversal of 102043205121 is 121502340201.

It is not a de Polignac number, because 102043205121 - 2²¹ = 102041107969 is a prime.

It is a super-2 number, since 2×102043205121² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102043205141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 118931046 + ... + 118931903.

It is an arithmetic number, because the mean of its divisors is an integer number (9990243900).

Almost surely, 2^102043205121 is an apocalyptic number.

102043205121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102043205121 is a deficient number, since it is larger than the sum of its proper divisors (57800697279).

102043205121 is a wasteful number, since it uses less digits than its factorization.

102043205121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237862976.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 102043205121 its reverse (121502340201), we get a palindrome (223545545322).

The spelling of 102043205121 in words is "one hundred two billion, forty-three million, two hundred five thousand, one hundred twenty-one".