1423124110021 has 2 divisors, whose sum is σ = 1423124110022. Its totient is φ = 1423124110020.

The previous prime is 1423124110019. The next prime is 1423124110063. The reversal of 1423124110021 is 1200114213241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1396440887521 + 26683222500 = 1181711^2 + 163350^2 .

It is an emirp because it is prime and its reverse (1200114213241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423124110021 - 2¹ = 1423124110019 is a prime.

Together with 1423124110019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1423124109974 and 1423124110001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423124110081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711562055010 + 711562055011.

It is an arithmetic number, because the mean of its divisors is an integer number (711562055011).

Almost surely, 2^{1423124110021} is an apocalyptic number.

It is an amenable number.

1423124110021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423124110021 is an equidigital number, since it uses as much as digits as its factorization.

1423124110021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1423124110021 its reverse (1200114213241), we get a palindrome (2623238323262).

The spelling of 1423124110021 in words is "one trillion, four hundred twenty-three billion, one hundred twenty-four million, one hundred ten thousand, twenty-one".