10107421 has 2 divisors, whose sum is σ = 10107422. Its totient is φ = 10107420.

The previous prime is 10107407. The next prime is 10107437. The reversal of 10107421 is 12470101.

10107421 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (10107437) can be obtained adding 10107421 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9272025 + 835396 = 3045^2 + 914^2 .

It is a cyclic number.

It is not a de Polignac number, because 10107421 - 2⁹ = 10106909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10107395 and 10107404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10107121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5053710 + 5053711.

It is an arithmetic number, because the mean of its divisors is an integer number (5053711).

Almost surely, 2^10107421 is an apocalyptic number.

It is an amenable number.

10107421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10107421 is an equidigital number, since it uses as much as digits as its factorization.

10107421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 10107421 is about 3179.2170419775. The cubic root of 10107421 is about 216.2121615108.

Adding to 10107421 its reverse (12470101), we get a palindrome (22577522).

The spelling of 10107421 in words is "ten million, one hundred seven thousand, four hundred twenty-one".