420123101421223 has 2 divisors, whose sum is σ = 420123101421224. Its totient is φ = 420123101421222.

The previous prime is 420123101421097. The next prime is 420123101421269. The reversal of 420123101421223 is 322124101321024.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420123101421223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420123101421191 and 420123101421200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420123101421823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210061550710611 + 210061550710612.

It is an arithmetic number, because the mean of its divisors is an integer number (210061550710612).

Almost surely, 2^{420123101421223} is an apocalyptic number.

420123101421223 is a deficient number, since it is larger than the sum of its proper divisors (1).

420123101421223 is an equidigital number, since it uses as much as digits as its factorization.

420123101421223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 420123101421223 its reverse (322124101321024), we get a palindrome (742247202742247).

The spelling of 420123101421223 in words is "four hundred twenty trillion, one hundred twenty-three billion, one hundred one million, four hundred twenty-one thousand, two hundred twenty-three".