1112103581 has 2 divisors, whose sum is σ = 1112103582. Its totient is φ = 1112103580.

The previous prime is 1112103533. The next prime is 1112103583. The reversal of 1112103581 is 1853012111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 672572356 + 439531225 = 25934^2 + 20965^2 .

It is a cyclic number.

It is not a de Polignac number, because 1112103581 - 2¹⁰ = 1112102557 is a prime.

It is a super-2 number, since 2×1112103581² = 2473548749746047122, which contains 22 as substring.

Together with 1112103583, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1112103583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556051790 + 556051791.

It is an arithmetic number, because the mean of its divisors is an integer number (556051791).

Almost surely, 2^1112103581 is an apocalyptic number.

It is an amenable number.

1112103581 is a deficient number, since it is larger than the sum of its proper divisors (1).

1112103581 is an equidigital number, since it uses as much as digits as its factorization.

1112103581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

The square root of 1112103581 is about 33348.2170587874. The cubic root of 1112103581 is about 1036.0524603484.

Adding to 1112103581 its reverse (1853012111), we get a palindrome (2965115692).

The spelling of 1112103581 in words is "one billion, one hundred twelve million, one hundred three thousand, five hundred eighty-one".