210401403422123 has 2 divisors, whose sum is σ = 210401403422124. Its totient is φ = 210401403422122.

The previous prime is 210401403421991. The next prime is 210401403422149. The reversal of 210401403422123 is 321224304104012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 210401403422123 - 2³⁶ = 210332683945387 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (210401403422173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105200701711061 + 105200701711062.

It is an arithmetic number, because the mean of its divisors is an integer number (105200701711062).

Almost surely, 2^{210401403422123} is an apocalyptic number.

210401403422123 is a deficient number, since it is larger than the sum of its proper divisors (1).

210401403422123 is an equidigital number, since it uses as much as digits as its factorization.

210401403422123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 210401403422123 its reverse (321224304104012), we get a palindrome (531625707526135).

The spelling of 210401403422123 in words is "two hundred ten trillion, four hundred one billion, four hundred three million, four hundred twenty-two thousand, one hundred twenty-three".