10212421423 has 2 divisors, whose sum is σ = 10212421424. Its totient is φ = 10212421422.

The previous prime is 10212421399. The next prime is 10212421487. The reversal of 10212421423 is 32412421201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10212421423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10212421394 and 10212421403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10212421523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5106210711 + 5106210712.

It is an arithmetic number, because the mean of its divisors is an integer number (5106210712).

Almost surely, 2^10212421423 is an apocalyptic number.

10212421423 is a deficient number, since it is larger than the sum of its proper divisors (1).

10212421423 is an equidigital number, since it uses as much as digits as its factorization.

10212421423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 10212421423 its reverse (32412421201), we get a palindrome (42624842624).

The spelling of 10212421423 in words is "ten billion, two hundred twelve million, four hundred twenty-one thousand, four hundred twenty-three".