203011013331106 has 4 divisors (see below), whose sum is σ = 304516519996662. Its totient is φ = 101505506665552.

The previous prime is 203011013331067. The next prime is 203011013331109. The reversal of 203011013331106 is 601133310110302.

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

It can be written as a sum of positive squares in only one way, i.e., 174930117993225 + 28080895337881 = 13226115^2 + 5299141^2 .

It is not an unprimeable number, because it can be changed into a prime (203011013331109) 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 as a sum of consecutive naturals, namely, 50752753332775 + ... + 50752753332778.

Almost surely, 2^{203011013331106} is an apocalyptic number.

203011013331106 is a deficient number, since it is larger than the sum of its proper divisors (101505506665556).

203011013331106 is a wasteful number, since it uses less digits than its factorization.

203011013331106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101505506665555.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 203011013331106 its reverse (601133310110302), we get a palindrome (804144323441408).

The spelling of 203011013331106 in words is "two hundred three trillion, eleven billion, thirteen million, three hundred thirty-one thousand, one hundred six".