1130311231 has 8 divisors (see below), whose sum is σ = 1316157984. Its totient is φ = 950557920.

The previous prime is 1130311229. The next prime is 1130311271. The reversal of 1130311231 is 1321130311.

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

It is a cyclic number.

It is not a de Polignac number, because 1130311231 - 2¹ = 1130311229 is a prime.

It is a super-2 number, since 2×1130311231² = 2555206957849470722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130311211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1522960 + ... + 1523701.

It is an arithmetic number, because the mean of its divisors is an integer number (164519748).

Almost surely, 2^1130311231 is an apocalyptic number.

1130311231 is a deficient number, since it is larger than the sum of its proper divisors (185846753).

1130311231 is an equidigital number, since it uses as much as digits as its factorization.

1130311231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3046721.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1130311231 is about 33620.1015911612. The cubic root of 1130311231 is about 1041.6760545230.

Adding to 1130311231 its reverse (1321130311), we get a palindrome (2451441542).

The spelling of 1130311231 in words is "one billion, one hundred thirty million, three hundred eleven thousand, two hundred thirty-one".