1121011203111 has 8 divisors (see below), whose sum is σ = 1495462940400. Its totient is φ = 746950133952.

The previous prime is 1121011203079. The next prime is 1121011203157. The reversal of 1121011203111 is 1113021101211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121011203111 - 2⁵ = 1121011203079 is a prime.

It is a super-2 number, since 2×1121011203111² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121011203161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 97660336 + ... + 97671813.

It is an arithmetic number, because the mean of its divisors is an integer number (186932867550).

Almost surely, 2^{1121011203111} is an apocalyptic number.

1121011203111 is a deficient number, since it is larger than the sum of its proper divisors (374451737289).

1121011203111 is a wasteful number, since it uses less digits than its factorization.

1121011203111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195334065.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 1121011203111 its reverse (1113021101211), we get a palindrome (2234032304322).

The spelling of 1121011203111 in words is "one trillion, one hundred twenty-one billion, eleven million, two hundred three thousand, one hundred eleven".