1210406423 has 4 divisors (see below), whose sum is σ = 1210492800. Its totient is φ = 1210320048.

The previous prime is 1210406401. The next prime is 1210406467. The reversal of 1210406423 is 3246040121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1210406423 - 2⁶ = 1210406359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210403423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16790 + ... + 51987.

It is an arithmetic number, because the mean of its divisors is an integer number (302623200).

Almost surely, 2^1210406423 is an apocalyptic number.

1210406423 is a deficient number, since it is larger than the sum of its proper divisors (86377).

1210406423 is an equidigital number, since it uses as much as digits as its factorization.

1210406423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86376.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1210406423 is about 34790.8956912581. The cubic root of 1210406423 is about 1065.7215306448.

Adding to 1210406423 its reverse (3246040121), we get a palindrome (4456446544).

The spelling of 1210406423 in words is "one billion, two hundred ten million, four hundred six thousand, four hundred twenty-three".