203113221302 has 4 divisors (see below), whose sum is σ = 304669831956. Its totient is φ = 101556610650.

The previous prime is 203113221257. The next prime is 203113221323. The reversal of 203113221302 is 203122311302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 203122311302 = 2 ⋅101561155651.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 50778305324 + ... + 50778305327.

It is an arithmetic number, because the mean of its divisors is an integer number (76167457989).

Almost surely, 2^203113221302 is an apocalyptic number.

203113221302 is a deficient number, since it is larger than the sum of its proper divisors (101556610654).

203113221302 is a wasteful number, since it uses less digits than its factorization.

203113221302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101556610653.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203113221302 its reverse (203122311302), we get a palindrome (406235532604).

The spelling of 203113221302 in words is "two hundred three billion, one hundred thirteen million, two hundred twenty-one thousand, three hundred two".