402120011303 has 4 divisors (see below), whose sum is σ = 402841950840. Its totient is φ = 401398071768.

The previous prime is 402120011269. The next prime is 402120011311. The reversal of 402120011303 is 303110021204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 402120011303 - 2⁶ = 402120011239 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 (402120011393) 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 3 ways as a sum of consecutive naturals, for example, 360968933 + ... + 360970046.

It is an arithmetic number, because the mean of its divisors is an integer number (100710487710).

Almost surely, 2^402120011303 is an apocalyptic number.

402120011303 is a deficient number, since it is larger than the sum of its proper divisors (721939537).

402120011303 is an equidigital number, since it uses as much as digits as its factorization.

402120011303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 721939536.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 402120011303 its reverse (303110021204), we get a palindrome (705230032507).

Subtracting from 402120011303 its reverse (303110021204), we obtain a palindrome (99009990099).

The spelling of 402120011303 in words is "four hundred two billion, one hundred twenty million, eleven thousand, three hundred three".