102312010121 has 8 divisors (see below), whose sum is σ = 108421475400. Its totient is φ = 96374642560.

The previous prime is 102312010111. The next prime is 102312010123. The reversal of 102312010121 is 121010213201.

It can be written as a sum of positive squares in 4 ways, for example, as 4132561225 + 98179448896 = 64285^2 + 313336^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102312010121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102312010096 and 102312010105.

It is not an unprimeable number, because it can be changed into a prime (102312010123) 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 7 ways as a sum of consecutive naturals, for example, 43023206 + ... + 43025583.

It is an arithmetic number, because the mean of its divisors is an integer number (13552684425).

Almost surely, 2^102312010121 is an apocalyptic number.

It is an amenable number.

102312010121 is a deficient number, since it is larger than the sum of its proper divisors (6109465279).

102312010121 is an equidigital number, since it uses as much as digits as its factorization.

102312010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86048859.

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

Adding to 102312010121 its reverse (121010213201), we get a palindrome (223322223322).

The spelling of 102312010121 in words is "one hundred two billion, three hundred twelve million, ten thousand, one hundred twenty-one".