203012113012011 has 16 divisors (see below), whose sum is σ = 303736494719520. Its totient is φ = 134001394725600.

The previous prime is 203012113011971. The next prime is 203012113012013. The reversal of 203012113012011 is 110210311210302.

203012113012011 is a `hidden beast` number, since 2 + 0 + 301 + 211 + 30 + 120 + 1 + 1 = 666.

It is not a de Polignac number, because 203012113012011 - 2¹¹ = 203012113009963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203012113012013) 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 15 ways as a sum of consecutive naturals, for example, 37222606920 + ... + 37222612373.

It is an arithmetic number, because the mean of its divisors is an integer number (18983530919970).

Almost surely, 2^{203012113012011} is an apocalyptic number.

203012113012011 is a deficient number, since it is larger than the sum of its proper divisors (100724381707509).

203012113012011 is a wasteful number, since it uses less digits than its factorization.

203012113012011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74445219403 (or 74445219397 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 203012113012011 its reverse (110210311210302), we get a palindrome (313222424222313).

The spelling of 203012113012011 in words is "two hundred three trillion, twelve billion, one hundred thirteen million, twelve thousand, eleven".