1131111130 has 16 divisors (see below), whose sum is σ = 2083349664. Its totient is φ = 441922320.

The previous prime is 1131111101. The next prime is 1131111139. The reversal of 1131111130 is 311111311.

It is a self number, because there is not a number n which added to its sum of digits gives 1131111130.

It is not an unprimeable number, because it can be changed into a prime (1131111139) 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, 1314816 + ... + 1315675.

It is an arithmetic number, because the mean of its divisors is an integer number (130209354).

Almost surely, 2^1131111130 is an apocalyptic number.

1131111130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131111130 is a deficient number, since it is larger than the sum of its proper divisors (952238534).

1131111130 is a wasteful number, since it uses less digits than its factorization.

1131111130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630541.

The product of its (nonzero) digits is 9, while the sum is 13.

The square root of 1131111130 is about 33631.9956291624. The cubic root of 1131111130 is about 1041.9217211247.

Adding to 1131111130 its reverse (311111311), we get a palindrome (1442222441).

It can be divided in two parts, 1 and 131111130, that added together give a palindrome (131111131).

The spelling of 1131111130 in words is "one billion, one hundred thirty-one million, one hundred eleven thousand, one hundred thirty".