402213231403 has 4 divisors (see below), whose sum is σ = 403815674808. Its totient is φ = 400610788000.

The previous prime is 402213231323. The next prime is 402213231451. The reversal of 402213231403 is 304132312204.

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 402213231403 - 2²⁵ = 402179676971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402213231473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801221326 + ... + 801221827.

It is an arithmetic number, because the mean of its divisors is an integer number (100953918702).

Almost surely, 2^402213231403 is an apocalyptic number.

402213231403 is a deficient number, since it is larger than the sum of its proper divisors (1602443405).

402213231403 is a wasteful number, since it uses less digits than its factorization.

402213231403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1602443404.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 402213231403 its reverse (304132312204), we get a palindrome (706345543607).

It can be divided in two parts, 402213 and 231403, that added together give a square (633616 = 796²).

The spelling of 402213231403 in words is "four hundred two billion, two hundred thirteen million, two hundred thirty-one thousand, four hundred three".