10023140021 has 2 divisors, whose sum is σ = 10023140022. Its totient is φ = 10023140020.

The previous prime is 10023140003. The next prime is 10023140093. The reversal of 10023140021 is 12004132001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6644043121 + 3379096900 = 81511^2 + 58130^2 .

It is an emirp because it is prime and its reverse (12004132001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10023140021 - 2¹⁰ = 10023138997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10023139978 and 10023140005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10023140221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5011570010 + 5011570011.

It is an arithmetic number, because the mean of its divisors is an integer number (5011570011).

Almost surely, 2^10023140021 is an apocalyptic number.

It is an amenable number.

10023140021 is a deficient number, since it is larger than the sum of its proper divisors (1).

10023140021 is an equidigital number, since it uses as much as digits as its factorization.

10023140021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10023140021 its reverse (12004132001), we get a palindrome (22027272022).

The spelling of 10023140021 in words is "ten billion, twenty-three million, one hundred forty thousand, twenty-one".