1121111220103 has 32 divisors (see below), whose sum is σ = 1301447347200. Its totient is φ = 945952949760.

The previous prime is 1121111220071. The next prime is 1121111220137. The reversal of 1121111220103 is 3010221111211.

It is a happy number.

It is not a de Polignac number, because 1121111220103 - 2⁵ = 1121111220071 is a prime.

It is a super-2 number, since 2×1121111220103² (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 (1121111220503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93334368 + ... + 93346378.

It is an arithmetic number, because the mean of its divisors is an integer number (40670229600).

Almost surely, 2^{1121111220103} is an apocalyptic number.

1121111220103 is a deficient number, since it is larger than the sum of its proper divisors (180336127097).

1121111220103 is a wasteful number, since it uses less digits than its factorization.

1121111220103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12927.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 1121111220103 its reverse (3010221111211), we get a palindrome (4131332331314).

The spelling of 1121111220103 in words is "one trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand, one hundred three".