1131111141 has 8 divisors (see below), whose sum is σ = 1508400000. Its totient is φ = 753948192.

The previous prime is 1131111139. The next prime is 1131111151. The reversal of 1131111141 is 1411111311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131111141 - 2¹ = 1131111139 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131111141.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131111101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8016 + ... + 48233.

It is an arithmetic number, because the mean of its divisors is an integer number (188550000).

Almost surely, 2^1131111141 is an apocalyptic number.

It is an amenable number.

1131111141 is a deficient number, since it is larger than the sum of its proper divisors (377288859).

1131111141 is an equidigital number, since it uses as much as digits as its factorization.

1131111141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62955.

The product of its digits is 12, while the sum is 15.

The square root of 1131111141 is about 33631.9957926972. The cubic root of 1131111141 is about 1041.9217245022.

Adding to 1131111141 its reverse (1411111311), we get a palindrome (2542222452).

The spelling of 1131111141 in words is "one billion, one hundred thirty-one million, one hundred eleven thousand, one hundred forty-one".