1130020231 has 8 divisors (see below), whose sum is σ = 1189913600. Its totient is φ = 1070168760.

The previous prime is 1130020223. The next prime is 1130020237. The reversal of 1130020231 is 1320200311.

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 1130020231 - 2³ = 1130020223 is a prime.

It is a super-2 number, since 2×1130020231² = 2553891444938586722, 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 (1130020237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55660 + ... + 73198.

It is an arithmetic number, because the mean of its divisors is an integer number (148739200).

Almost surely, 2^1130020231 is an apocalyptic number.

1130020231 is a deficient number, since it is larger than the sum of its proper divisors (59893369).

1130020231 is a wasteful number, since it uses less digits than its factorization.

1130020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20949.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1130020231 is about 33615.7735445728. The cubic root of 1130020231 is about 1041.5866532617.

Adding to 1130020231 its reverse (1320200311), we get a palindrome (2450220542).

The spelling of 1130020231 in words is "one billion, one hundred thirty million, twenty thousand, two hundred thirty-one".