1111004131 has 4 divisors (see below), whose sum is σ = 1111086352. Its totient is φ = 1110921912.

The previous prime is 1111004113. The next prime is 1111004137. The reversal of 1111004131 is 1314001111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 1314001111 = 17 ⋅77294183.

It is a cyclic number.

It is not a de Polignac number, because 1111004131 - 2⁵ = 1111004099 is a prime.

It is a super-2 number, since 2×1111004131² = 2468660358198130322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111004137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15540 + ... + 49633.

It is an arithmetic number, because the mean of its divisors is an integer number (277771588).

Almost surely, 2^1111004131 is an apocalyptic number.

1111004131 is a deficient number, since it is larger than the sum of its proper divisors (82221).

1111004131 is an equidigital number, since it uses as much as digits as its factorization.

1111004131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82220.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 1111004131 is about 33331.7285930388. The cubic root of 1111004131 is about 1035.7109263765.

Adding to 1111004131 its reverse (1314001111), we get a palindrome (2425005242).

The spelling of 1111004131 in words is "one billion, one hundred eleven million, four thousand, one hundred thirty-one".