1011131103 has 32 divisors (see below), whose sum is σ = 1399942656. Its totient is φ = 648857088.

The previous prime is 1011131087. The next prime is 1011131137. The reversal of 1011131103 is 3011311101.

It is not a de Polignac number, because 1011131103 - 2⁴ = 1011131087 is a prime.

It is a super-2 number, since 2×1011131103² = 2044772214907993218, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011131903) 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, 2009950 + ... + 2010452.

It is an arithmetic number, because the mean of its divisors is an integer number (43748208).

Almost surely, 2^1011131103 is an apocalyptic number.

1011131103 is a deficient number, since it is larger than the sum of its proper divisors (388811553).

1011131103 is a wasteful number, since it uses less digits than its factorization.

1011131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 783.

The product of its (nonzero) digits is 9, while the sum is 12.

The square root of 1011131103 is about 31798.2877369207. The cubic root of 1011131103 is about 1003.6966853451.

Adding to 1011131103 its reverse (3011311101), we get a palindrome (4022442204).

It can be divided in two parts, 10111 and 31103, that added together give a palindrome (41214).

The spelling of 1011131103 in words is "one billion, eleven million, one hundred thirty-one thousand, one hundred three".