1103012131 has 6 divisors (see below), whose sum is σ = 1194386100. Its totient is φ = 1018164888.

The previous prime is 1103012117. The next prime is 1103012137. The reversal of 1103012131 is 1312103011.

It is not a de Polignac number, because 1103012131 - 2¹⁹ = 1102487843 is a prime.

It is a super-2 number, since 2×1103012131² = 2433271522266322322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1103012137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3263181 + ... + 3263518.

It is an arithmetic number, because the mean of its divisors is an integer number (199064350).

Almost surely, 2^1103012131 is an apocalyptic number.

1103012131 is a deficient number, since it is larger than the sum of its proper divisors (91373969).

1103012131 is an equidigital number, since it uses as much as digits as its factorization.

1103012131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6526725 (or 6526712 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1103012131 is about 33211.6264431599. The cubic root of 1103012131 is about 1033.2214879177.

Adding to 1103012131 its reverse (1312103011), we get a palindrome (2415115142).

The spelling of 1103012131 in words is "one billion, one hundred three million, twelve thousand, one hundred thirty-one".