102000121121 has 4 divisors (see below), whose sum is σ = 104170336512. Its totient is φ = 99829905732.

The previous prime is 102000121087. The next prime is 102000121133. The reversal of 102000121121 is 121121000201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121121000201 = 127 ⋅953708663.

It is a cyclic number.

It is not a de Polignac number, because 102000121121 - 2¹⁸ = 101999858977 is a prime.

It is a super-3 number, since 3×102000121121³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102000121021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1085107625 + ... + 1085107718.

It is an arithmetic number, because the mean of its divisors is an integer number (26042584128).

Almost surely, 2^102000121121 is an apocalyptic number.

It is an amenable number.

102000121121 is a deficient number, since it is larger than the sum of its proper divisors (2170215391).

102000121121 is an equidigital number, since it uses as much as digits as its factorization.

102000121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2170215390.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 102000121121 its reverse (121121000201), we get a palindrome (223121121322).

The spelling of 102000121121 in words is "one hundred two billion, one hundred twenty-one thousand, one hundred twenty-one".