1231130 has 8 divisors (see below), whose sum is σ = 2216052. Its totient is φ = 492448.

The previous prime is 1231129. The next prime is 1231141. The reversal of 1231130 is 311321.

It can be written as a sum of positive squares in 2 ways, for example, as 1194649 + 36481 = 1093^2 + 191^2 .

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

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61547 + ... + 61566.

2^1231130 is an apocalyptic number.

1231130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1231130 is a deficient number, since it is larger than the sum of its proper divisors (984922).

1231130 is a wasteful number, since it uses less digits than its factorization.

1231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123120.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1231130 is about 1109.5629770319. The cubic root of 1231130 is about 107.1769280005.

Adding to 1231130 its reverse (311321), we get a palindrome (1542451).

The spelling of 1231130 in words is "one million, two hundred thirty-one thousand, one hundred thirty".