10231023212121 has 4 divisors (see below), whose sum is σ = 13641364282832. Its totient is φ = 6820682141412.

The previous prime is 10231023212087. The next prime is 10231023212141. The reversal of 10231023212121 is 12121232013201.

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.

It is not a de Polignac number, because 10231023212121 - 2¹⁸ = 10231022949977 is a prime.

It is a super-2 number, since 2×10231023212121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10231023212141) 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, 1705170535351 + ... + 1705170535356.

It is an arithmetic number, because the mean of its divisors is an integer number (3410341070708).

Almost surely, 2^{10231023212121} is an apocalyptic number.

It is an amenable number.

10231023212121 is a deficient number, since it is larger than the sum of its proper divisors (3410341070711).

10231023212121 is an equidigital number, since it uses as much as digits as its factorization.

10231023212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410341070710.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 10231023212121 its reverse (12121232013201), we get a palindrome (22352255225322).

The spelling of 10231023212121 in words is "ten trillion, two hundred thirty-one billion, twenty-three million, two hundred twelve thousand, one hundred twenty-one".