402320212123 has 8 divisors (see below), whose sum is σ = 402532593408. Its totient is φ = 402107887464.

The previous prime is 402320212117. The next prime is 402320212157. The reversal of 402320212123 is 321212023204.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 402320212123 - 2⁹ = 402320211611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 402320212094 and 402320212103.

It is not an unprimeable number, because it can be changed into a prime (402320212423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23003340 + ... + 23020822.

It is an arithmetic number, because the mean of its divisors is an integer number (50316574176).

Almost surely, 2^402320212123 is an apocalyptic number.

402320212123 is a deficient number, since it is larger than the sum of its proper divisors (212381285).

402320212123 is a wasteful number, since it uses less digits than its factorization.

402320212123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28313.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 402320212123 its reverse (321212023204), we get a palindrome (723532235327).

The spelling of 402320212123 in words is "four hundred two billion, three hundred twenty million, two hundred twelve thousand, one hundred twenty-three".