1130013231 has 4 divisors (see below), whose sum is σ = 1506684312. Its totient is φ = 753342152.

The previous prime is 1130013187. The next prime is 1130013233. The reversal of 1130013231 is 1323100311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1130013231 - 2⁶ = 1130013167 is a prime.

It is a super-2 number, since 2×1130013231² = 2553859804470118722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1130013231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130013233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188335536 + ... + 188335541.

It is an arithmetic number, because the mean of its divisors is an integer number (376671078).

Almost surely, 2^1130013231 is an apocalyptic number.

1130013231 is a deficient number, since it is larger than the sum of its proper divisors (376671081).

1130013231 is an equidigital number, since it uses as much as digits as its factorization.

1130013231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 376671080.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1130013231 is about 33615.6694266231. The cubic root of 1130013231 is about 1041.5845025269.

Adding to 1130013231 its reverse (1323100311), we get a palindrome (2453113542).

It can be divided in two parts, 11300 and 13231, that added together give a triangular number (24531 = T₂₂₁).

The spelling of 1130013231 in words is "one billion, one hundred thirty million, thirteen thousand, two hundred thirty-one".