1152130231 has 4 divisors (see below), whose sum is σ = 1316720272. Its totient is φ = 987540192.

The previous prime is 1152130219. The next prime is 1152130247. The reversal of 1152130231 is 1320312511.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1320312511 = 7 ⋅188616073.

It is a cyclic number.

It is not a de Polignac number, because 1152130231 - 2²⁹ = 615259319 is a prime.

It is a super-2 number, since 2×1152130231² = 2654808138368226722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1152130199 and 1152130208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152130211) 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, 82295010 + ... + 82295023.

It is an arithmetic number, because the mean of its divisors is an integer number (329180068).

Almost surely, 2^1152130231 is an apocalyptic number.

1152130231 is a deficient number, since it is larger than the sum of its proper divisors (164590041).

1152130231 is an equidigital number, since it uses as much as digits as its factorization.

1152130231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164590040.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1152130231 is about 33943.0439265544. The cubic root of 1152130231 is about 1048.3360587151.

Adding to 1152130231 its reverse (1320312511), we get a palindrome (2472442742).

The spelling of 1152130231 in words is "one billion, one hundred fifty-two million, one hundred thirty thousand, two hundred thirty-one".