10430123021 has 4 divisors (see below), whose sum is σ = 10430327292. Its totient is φ = 10429918752.

The previous prime is 10430122943. The next prime is 10430123027. The reversal of 10430123021 is 12032103401.

10430123021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 5433753796 + 4996369225 = 73714^2 + 70685^2 .

It is a cyclic number.

It is not a de Polignac number, because 10430123021 - 2¹⁴ = 10430106637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10430123027) 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, 49271 + ... + 152603.

It is an arithmetic number, because the mean of its divisors is an integer number (2607581823).

Almost surely, 2^10430123021 is an apocalyptic number.

It is an amenable number.

10430123021 is a deficient number, since it is larger than the sum of its proper divisors (204271).

10430123021 is a wasteful number, since it uses less digits than its factorization.

10430123021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 204270.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10430123021 its reverse (12032103401), we get a palindrome (22462226422).

The spelling of 10430123021 in words is "ten billion, four hundred thirty million, one hundred twenty-three thousand, twenty-one".