402013203 has 4 divisors (see below), whose sum is σ = 536017608. Its totient is φ = 268008800.

The previous prime is 402013201. The next prime is 402013219. The reversal of 402013203 is 302310204.

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 402013203 - 2¹ = 402013201 is a prime.

It is a super-2 number, since 2×402013203² = 323229230772638418, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (402013201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67002198 + ... + 67002203.

It is an arithmetic number, because the mean of its divisors is an integer number (134004402).

Almost surely, 2^402013203 is an apocalyptic number.

402013203 is a deficient number, since it is larger than the sum of its proper divisors (134004405).

402013203 is a wasteful number, since it uses less digits than its factorization.

402013203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134004404.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 402013203 is about 20050.2669059541. The cubic root of 402013203 is about 738.0403489224.

Adding to 402013203 its reverse (302310204), we get a palindrome (704323407).

The spelling of 402013203 in words is "four hundred two million, thirteen thousand, two hundred three".