202120431403 has 4 divisors (see below), whose sum is σ = 220495016088. Its totient is φ = 183745846720.

The previous prime is 202120431377. The next prime is 202120431413. The reversal of 202120431403 is 304134021202.

202120431403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202120431403 - 2⁵ = 202120431371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202120431413) 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, 9187292326 + ... + 9187292347.

It is an arithmetic number, because the mean of its divisors is an integer number (55123754022).

Almost surely, 2^202120431403 is an apocalyptic number.

202120431403 is a deficient number, since it is larger than the sum of its proper divisors (18374584685).

202120431403 is a wasteful number, since it uses less digits than its factorization.

202120431403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18374584684.

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

Adding to 202120431403 its reverse (304134021202), we get a palindrome (506254452605).

The spelling of 202120431403 in words is "two hundred two billion, one hundred twenty million, four hundred thirty-one thousand, four hundred three".