11031203012111 has 16 divisors (see below), whose sum is σ = 11196762192000. Its totient is φ = 10866895946400.

The previous prime is 11031203012107. The next prime is 11031203012189. The reversal of 11031203012111 is 11121030213011.

It is a cyclic number.

It is not a de Polignac number, because 11031203012111 - 2² = 11031203012107 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11031203012111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031203012311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167872340 + ... + 167938038.

It is an arithmetic number, because the mean of its divisors is an integer number (699797637000).

Almost surely, 2^{11031203012111} is an apocalyptic number.

11031203012111 is a deficient number, since it is larger than the sum of its proper divisors (165559179889).

11031203012111 is a wasteful number, since it uses less digits than its factorization.

11031203012111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75190.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11031203012111 its reverse (11121030213011), we get a palindrome (22152233225122).

The spelling of 11031203012111 in words is "eleven trillion, thirty-one billion, two hundred three million, twelve thousand, one hundred eleven".