10102300121021 has 4 divisors (see below), whose sum is σ = 10102566030012. Its totient is φ = 10102034212032.

The previous prime is 10102300120993. The next prime is 10102300121041. The reversal of 10102300121021 is 12012100320101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9932494315396 + 169805805625 = 3151586^2 + 412075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10102300121021 is a prime.

It is a super-2 number, since 2×10102300121021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10102300120987 and 10102300121005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10102300121041) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 132897500 + ... + 132973493.

It is an arithmetic number, because the mean of its divisors is an integer number (2525641507503).

Almost surely, 2^{10102300121021} is an apocalyptic number.

It is an amenable number.

10102300121021 is a deficient number, since it is larger than the sum of its proper divisors (265908991).

10102300121021 is an equidigital number, since it uses as much as digits as its factorization.

10102300121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265908990.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10102300121021 its reverse (12012100320101), we get a palindrome (22114400441122).

The spelling of 10102300121021 in words is "ten trillion, one hundred two billion, three hundred million, one hundred twenty-one thousand, twenty-one".