1131031130 has 16 divisors (see below), whose sum is σ = 2074269384. Its totient is φ = 443876160.

The previous prime is 1131031103. The next prime is 1131031189. The reversal of 1131031130 is 311301311.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 705805489 + 425225641 = 26567^2 + 20621^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1066481 + ... + 1067540.

Almost surely, 2^1131031130 is an apocalyptic number.

1131031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131031130 is a deficient number, since it is larger than the sum of its proper divisors (943238254).

1131031130 is a wasteful number, since it uses less digits than its factorization.

1131031130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134081.

The product of its (nonzero) digits is 27, while the sum is 14.

The square root of 1131031130 is about 33630.8062644951. The cubic root of 1131031130 is about 1041.8971565761.

Adding to 1131031130 its reverse (311301311), we get a palindrome (1442332441).

The spelling of 1131031130 in words is "one billion, one hundred thirty-one million, thirty-one thousand, one hundred thirty".