121023010130121 has 128 divisors (see below), whose sum is σ = 205216385310720. Its totient is φ = 69833856499200.

The previous prime is 121023010130081. The next prime is 121023010130137. The reversal of 121023010130121 is 121031010320121.

121023010130121 is a `hidden beast` number, since 1 + 2 + 10 + 230 + 101 + 301 + 21 = 666.

It is not a de Polignac number, because 121023010130121 - 2¹³ = 121023010121929 is a prime.

It is a super-3 number, since 3×121023010130121³ (a number of 43 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121023010130094 and 121023010130103.

It is not an unprimeable number, because it can be changed into a prime (121023010134121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 198289995 + ... + 198899391.

It is an arithmetic number, because the mean of its divisors is an integer number (1603253010240).

Almost surely, 2^{121023010130121} is an apocalyptic number.

121023010130121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

121023010130121 is a deficient number, since it is larger than the sum of its proper divisors (84193375180599).

121023010130121 is a wasteful number, since it uses less digits than its factorization.

121023010130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609852 (or 609846 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 121023010130121 its reverse (121031010320121), we get a palindrome (242054020450242).

The spelling of 121023010130121 in words is "one hundred twenty-one trillion, twenty-three billion, ten million, one hundred thirty thousand, one hundred twenty-one".